Latest Updates | New Knowledge Network Solutions | CFD

[matthew.d]

Question: Where can I find a list of the latest Autodesk Knowledge Network support solutions that were created and/or updated for CFD?

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[matthew.d · Accepted solution]

December 2017

Why is the temperature range so narrow in a CFD thermal analysis

CFD: Capturing steady state heat transfer analysis in a rotating region model

November 2017

Autodesk CFD Verification Test Model

Autodesk CFD: Assigning flow variation to a heat exchanger material

CFD: Exporting physical quantities along a particle trace

CFD: Where to find the installer of CFD Viewer 2017?

Determining building HVAC cooling requirements in Autodesk CFD

Error when exporting CFD Data Package in Autodesk CFD

Error: “The Analysis has stopped because the Solver has exited unexpectedly” before processing the f...

Heat exchanger material is meshed poorly in Autodesk CFD

Modeling air quality in an operating room in Autodesk CFD

Modeling complex electronic components which are dissipating heat in Autodesk CFD

Poor graphics performance in Autodesk CFD

Simulation diverging while using Low Re k-e turbulence model in Autodesk CFD

Temperature is not being calculated in a CFD rotating region analysis

Time step size calculator not working for rotating region in Autodesk CFD

Unrealistically slow transient conduction heat transfer in Autodesk CFD

October 2017

Autodesk CFD is diverging while using component velocity boundary conditions

CFD: Calculating pipe flow pressure drop due to wall roughness

CFD: Jobs are launched locally but never start running (Queued)

CFD: Modeling one side of a heat exchanger

CFD: Multiphase simulation gives bad results while using user-defined thermodynamic table

CFD: Should a Slip/Symmetry boundary condition be applied on the ground plane for a wind loading mod...

CFD: What does the LMA refer to?

CFD: What is the difference between the force of the wall calculator and the one of the RR result fi...

Electronics CAD takes hours to launch into Autodesk CFD

Error: “Unable to start Solver (could not upload job files)” in Simulation CFD

How to show LMA in Simulation CFD?

Modeling a car exhausting air into a garage in Autodesk CFD

Reference temperature for a convection load in CFD

Validating a multiphase flow solution in Autodesk

CFD extruded mesh works on some volumes but not others

CFD: Mean radiant temperature results are the same as the ambient temperature values on a cut-plane

CFD: Obtaining average percent liquid in a volume

CFD: Solver exiting unexpectedly while using periodic boundary condition

Boundary conditions and material assignments are lost while migrating project to a newer version of ...

Flow Design vs. Autodesk CFD

September 2017

CFD: How to assess convergence for a Rotating Region analysis?

CFD: How to extract the torque values during a local run?

CFD: How to see results on suppressed volumes?

CFD: Particle traces do not work in 2D models

CFD: The simulation of a Rotating Region is crashing in the middle of the run

CFD: Unexpected torque results from a rotating region analysis

CFD: What are the settings of the enhancement layers that should be used for the SST turbulence mode...

CFD: Where to check the mesh count while the simulation is running?

Does Autodesk CFD use the graphic card during the simulation?

Does the cloud use the CFD1 or CFD2 solver?

How does CFD2 scale from 4 to 8-16-32 cores?

Is there a way to transfer the force results from Autodesk CFD into another FEM Software?

Understanding heat transfer through an internal fan material in Autodesk CFD

Using Autodesk CFD to understand vibration forces during a fluid-structure interaction study

What Y+ values should be used for the ke and SST turbulence models?

CFD: Stop button does not end local solve

How to split up a CFD Analysis file

Low Re k-epsilon turbulence model results in the CFD Solver iterating slower

Modeling a fluid at high pressure in Autodesk CFD: compressible flow vs. scenario environment refere...

How does CFD calculate the convective heat transfer?

Autodesk CFD: use_sst_rc missing from the flag list

Autodesk CFD: Modeling AEC diffusers without using internal boundary conditions

CFD: How to apply initial condition of temperature to a volume?

CFD: How to hide the outlines of the cut-plane?

CFD: Temperature results are lower than the theoretical values

CFD: The temperature values are diverging in the middle of the simulation

CFD: The User Interface (UI) crashes when trying to export traces as .fbx file

Creating your own multiphase material in Autodesk CFD

CFD analysis converges slowly

Moldflow (Simulation products) timeout function

Setting personalized startup units in CFD does not take effect in CFD 2018

How to model baffles, registers, vents, screens, etc in Autodesk Simulation CFD

Direct import of STEP file into Autodesk CFD results in components losing their names

 
August 2017

How to access pressure coefficient on a wall by Python script in Autodesk CFD

Tips for setting up a motion analysis in Autodesk CFD

CFD installed in English but starts up in local language

Importing a mesh (*.nas) file into CFD causes application crash

When to include an air gap around an Internal Fan in CFD

Rounded surfaces of a model get damaged when imported into CFD

CFD: Forced convection electronics cooling analysis is diverging

CFD: Misleading units of imported Creo models

CFD: The results are not coming back from the cloud

Energy balance vs. pressure mesh independence while using mesh adaptation in CFD

How to calculate particle trace partial residence time in CFD

CFD: The number of materials in the “gbi” and “ctl” files do not match

CFD Cloud solve fails to download from cloud once the solve is completed

CFD: How to check air quality in a train station?

Graphical issues on the UI pop up when using Autodesk CFD

Applying gravity to flow driven motion in Autodesk CFD

CFD: How to model the diffusion of a fluid A into a fluid B?

CFD: Solver exits unexpectedly due to file Input/Output errors

CFD: Solver exits unexpectedly due to high memory use

CFD: Solver exits unexpectedly due to issues with CFD Server

CFD: Solver exits unexpectedly due to poorly posed parameters

CFD: Solver exits unexpectedly while running a scalar mixing analysis

Finding the maximum temperature on a plane in Autodesk CFD

CFD: Solver exits unexpectedly due to meshing problems

Post processing while using the two-phase heat transfer module

CFD: Simulating closing and opening of doors in an AEC application

Configure remote solving for CFD with computer using Symantec Antivirus

CFD: Interpreting film coefficient results from wall calculator in a Cartesian 2D simulation

Autodesk CFD: pressure and temperature radio buttons in Solution Control

CFD: Apparent energy imbalance on electronics box while using heat sink materials

CFD: Mesh between wall layers and uniform tetrahedrals are distorted and have poor quality

Error: Exceeded resources of cloud-based solver computer while solving Autodesk CFD simulation on Cl...

July 2017

Time step size for CFD massed particle tracings

Simulating a flap valve in Autodesk CFD

Strange temperature distribution during transient flow and heat transfer analysis in Autodesk CFD

Modeling a closed loop recirculation path in Autodesk CFD

Modeling a fluidized sand bed filter in Autodesk CFD

Report Generator format options in Autodesk CFD

Interpreting bulk calculator flow results in Autodesk CFD

How to create a fan curve in CFD?

How to change the license type in CFD 2018 Update 1?

Error: “Spacing # wil result in excessive grid points. Adjusting to # ” when refining the grid spaci...

Error: “The Analysis has stopped because the Solver has exited unexpectedly” while running a simulat...

Does CFD calculate the wet bulb temperature?

Capturing thermal gas expansion inside a sealed volume in Autodesk CFD

Backflow in a CFD model with pressure inlet and outlet boundary conditions

“adv5_no_dtime” flag is missing in CFD 2018

How to model an internal fan and fan guard

CFD: assigning rpm vs. tangential velocity for internal fan material

CFD: Diverging simulation for highly turbulent flow on intake manifold simulation

CFD: Do the fluid properties of a phase change analysis vary?

CFD: Energy balance worsens during mesh adaptation cycles

CFD: Is there a way to model a swirl diffuser without geometry using the internal fan/blower materia...

CFD: Obtaining average temperature values for a small volume within a single part

CFD: Setting results legend to multiple parts

CFD: Solid that is perscribed free motion is not moving

CFD: temperature decay simulation does not match experimental results

CFD: Time step is changing each iteration during free surface analysis

CFD: Time steps to run issue for transient analysis

Autodesk CFD Cloud Solving Hardware

Autodesk CFD Vs. Robot Structural Analysis

Autodesk CFD: internal fan operating point

June 2017

Error: “An axisymmetric model can’t cross the axis of symmetry” in Simulation CFD

Error: “The normal direction of an element face could not be determined because it collapsed to a li...

No heat is dissipated in external cooling of electronics box

Unit of scalar variables in Custom result quantities tool

CFD: How to set up a two phase flow analysis?

CFD: Defining a filter using a volume resistance material

CFD: Fluid is disappearing from the screen for a free surface analysis

CFD: Nodal Aspect Ratio changes during solve

Error: “The Analysis has stopped because the Solver has exited unexpectedly” before executing the fi...

Error: Unable to connect to Simulation Job Manager in Simulation CFD

Is it possible to change material properties part way into a CFD analysis

Modeling transient solar loading over an entire year in Autodesk CFD

“A valid license could not be obtained by the network license manager - Error [-5.412.11004]” when l...

CFD 2016 and CFD 2017 are showing very different results during a compressible flow analysis with he...

CFD: Advection Scheme 1 vs. Advection Scheme 5 are showing different results between two identical s...

How to eliminate recirculation at the outlets in a CFD model

Modeling plastic particulate in a manufacturing floor space using Autodesk CFD

Using a home use license of CFD

Using Fluid Energy Balance Information from Summary File in Autodesk CFD

CFD: Convergence plot in a natural convection/AEC model is unstable

CFD: The volume resistance does straighten the flow

Divergence in CFD simulation due to radiation

Time not matching up with step size and number of iterations in a transient CFD analysis

May 2017

Autodesk CFD crashes when updating geometry

CAD entity groups are not transferred from Inventor 2017 to CFD 2018 via CAD connection

CFD Centrifugal Pump/Blower with touching inlet and outlet surfaces

CFD is producing very high velocities

CFD Simulation stuck at 0th iteration

CFD: How to set up a solar heating model to evaluate the temperature on the external walls?

CFD: Over predicting flow of a centrifugal pump

CFD: Pressure drop through a long helical tube

CFD: Transient constant pressure boundary condition is in gage even when absolute is specified

CFD: Using heat sink material in areas of turbulent flow

CFD: Using thermal comfort result quantity with moist air

Error “The interface license cannot be accessed” when launching CFD 2018

Error: “The (motion) solver license could not be checked out from the license server” when launching...

Problem plotting results at points in Autodesk CFD

PTC Creo 4.0 CAD connection/direct import to CFD 2018

Unable to create an even mesh in Autodesk CFD

CFD - You do not have the necessary solver license to solve this job on the cloud

April 2017

CFD: Solver exits unexpectedly while using cylindrical volume resistance.

How to set up a spring resistance force on a motion object in Autodesk Simulation CFD

CFD: How to create a vacuum material where parts radiate across it?

CFD Error: “Analysis has stopped because the Solver has exited Unexpectedly” at meshing

CFD launcher crashes when launching CAD from Spaceclaim

CFD: Design Study Bar scenario folder is signalling results but no results are loaded in UI

CFD: How to change the language of the user interface?

CFD: Large mass imbalance between inlet and outlet

CFD: Pressure and flow rate boundary condition at inlet

CFD: Transient compressible flow with motion is diverging

CFD: Visualizing pump impeller rotation in post processing

CFD analysis stuck after last time step

CFD: Unable to load a Revit model directly into CFD

Design locked after clone & update geometry in Simulation CFD

Error: Invalid boundary condition type: velocity when trying to apply a boundary condition via a scr...

How to update a design geometry in Autodesk CFD

Importing Materials from CAD into Simulation CFD

Modeling the solidification of metal in CFD

Multicore mesher is not using the number of specified cores in CFD

Simulation CFD opens but there is no licence found when the Solve button is pressed

Temperatures applied via a CSV generated rule defaults to Kelvin or Rankin during the analysis in CF...

Can CFD estimate the runtime before starting the simulation?

March 2017

CFD: Compressible flow at an angle of attack 

CFD Rotating Region analysis quits due to license issue

CFD: Natural convection in a pipe is diverging.
CFD: Obtaining bulk calculator results for every save interval
Error: The (advanced) Solver license could not be cecked out from the license server
UG NX 11 is not compatible with CFD 

CFD: Wall calculator is showing very different film coefficients during mesh sensitivity study
CFD: What is the best way to capture vortex shedding 

CFD: use_local_help flag is not working 

February 2017

Cannot open the file error for cfz file in Autodesj CFD
CFD motion analysis not producing the expected results

Error: There are no radiation faces in the model 

Meshing options are greyed out in CFD 

CFD is crashing with error report on open 

Can you make changes to CAD model and not lose CFD setup
Running out of disk space for results in Simulation CFD 

What is the best way to model a heat pipe in CFD? 

CFD: transient model is not showing room temperature at T=0
CFD: Why is there an exclamation point on a scenario in the Design Study Bar?

Cannot open a CFD file after creating a new design

CFD: How to set up a free motion analysis? 

CFD Analysis generates zero velocities

CFD hangs when trying to open a model

CFD model with centrigugal pump/blower exhibits instability

CFD: Computer is blue screening during solve 

CFD Pump API: Excel spreadsheet has blank values

CFD: Radiation view factor calculation occurs when radiation is turned off 

CFD cooling channel analysis produces unexpected pressure

CFD Viewer shows unwanted velocity vectors

How to create a pin constraint without a cylindrical surface 

January 2017

CFD 2017: Local solving does not appear in Simulation Job Manager

Divergence during transient analysis 

Using a negative heat flux boundary condition