Engineering Stack Exchange
Engineering Stack Exchange

Questions tagged [simulation]

137 questions
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3 answers

Which turbulence models are suitable for CFD analysis on a streamlined vehicle body?

Many commercial and open-source CFD codes implement several closure methods for the non-linear convective acceleration term of the Reynolds-averaged Navier-Stokes (RANS) equations. Common methods (also known as turbulence models)…
Paul Gessler
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8
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Residuals of continuity not converging

I'm simulating a turbine. The convergence of solution is monitored by checking the residuals of the numerically solved governing equations. The "viscous-spalarat-almaras" model is used, and used air with constant density. Pressure-velocity coupled…
user19061
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How can I model or simulate motion caused by an internal vibrating motor?

I have a vibration motor contained in an object. The motor looks similar to this: When the motor is running, I want to simulate the movement of the container object that results from the vibration of the motor. I'm able to model the…
Geva Tal
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6
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1 answer

Programmable parameter change of Pro/E simulation by using Excel VBA , Matlab, Labview or Pro/E own function

Now, I've been conducting beam simulation by using Pro/E. I would like to change payload(force) of beam step by step, and then plot the relation between deflection and payload(load range : 50kg to 500kg, step size : 25kg). But, this task is too much…
KKS
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5
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2 answers

ANSYS Workbench/Mechanical: Automatically export chart?

I'm running a simple tensile test simulation for a single element. Under Results I made a Chart object with Stress vs Strain, which can be manually exported to a csv file by right clicking on the table. The trouble arises from the parametrization.…
rysciguy
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Explicit Dynamic ANSYS - Origami structure

I am working on a flat-foldable conical structure and I would like to carry out some dynamic tests on it (deployment to get the displacements and accelerations...). I have designed the folded geometry of this conical structure on Soliworks. This…
Rixpuk
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5
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2 answers

What amplitude is used for a finite element modal analysis excitation?

In a typical finite elements analysis package, a modal analysis gives the N first natural modes, and it is possible to get the equivalent stress and total deformations for each of these frequencies. But what amplitude did the solver use to get…
Mister Mystère
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1 answer

How do I model a longitudinal tensile strain in a laminate composite using Abaqus software?

I want to be able to measure the strain response in a material composed of 2 lamina, bottom one (0) top one half (0) half (90), and see the differences in the unidirectional versus the bidirectional area. I've been trying with the Lamina function,…
LDPC
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How to compare small and large scale model of an IC engine to predict force, torque, rpm etc generated by actual engine?

I have this 6 cylinder radial engine designed in Solidworks. Rendering Blueprint (Source:Inventor Wizards) And I want to perform some motion analysis on this engine to make some prediction about it's feasibility. So by now I have successfully…
Asker
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1 answer

Different calculations for values of thermodynamic properties

While deciding what tool (library) to use for a simulation of a hybrid gas turbine plant, I found that different libraries/tools of thermodynamic properties yield different values than the other. I made a simple test to calculate $c_p$ of air at…
Algo
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3
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Automotive Radiator Simulation

I'm developing a code to simulate thermal performance of automotive radiators. My results are 40% under-predicted. But when I multiply them to 1.6, they match completely. This is the graph that compares the results of program and experimental…
Naghi
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3
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Single-phase fully-controlled thyristor converter simulation using simulink

I am trying to implement a simple single-phase fully-controlled thyristor converter using Simulink. As load I have placed just an inductor, the firing angle is set to a=60 deg., f=50 Hz and the rms of the voltage source is 230 V. The output voltage…
user3212953
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3
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Generating a IES file from an illuminaire and a lens

I have a IES luminaire file of a lamp and some polar candela distribution plots of lenses like: How can I create a new luminaire file combining the lamp with every lens? I could manually sample the plots in order to retrieve the information from…
Isaac
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3
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3 answers

Non-Linear Analysis Convergence Problem in Ansys

I am currently conducting a static structural analysis study in Ansys and encountered convergence prolems. I have a very large thermal gradient (almost 600°C) as input from a precedent transient thermal analysis which I apply gradually. I am looking…
hansophyx
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3
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2 answers

How to simulate the contact between two distant parts in Ansys workbench？

I made a test in Ansys but the result doesn't seem to be the final steady state. The two bodies didn't touch each other. How can I get the right result?
landings
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