|
[Sponsors] |
June 27, 2017, 02:19 |
Mach 3 Flow Over Forward Step
|
#1 |
New Member
Al
Join Date: May 2017
Posts: 6
Rep Power: 8 |
Hi, I am practicing Ansys Fluent and wanted to simulate a Mach 3 flow over a forward-facing step. It seems like a relatively simple problem but my solutions don't want to converge. I am still new so I am probably doing something wrong. I am following the problem statement described in the paper by Woodward (Mach 3, and geometry as shown here). My mesh splits the geometry into 6300 elements.
As far as problem setup, I am using a Pressure-Based Solver and Steady in time. I turned the Energy Equation on and Viscous - Laminar. The Boundary Conditions is the part that I am not too sure about. I chose the step, top, and bottom surface to be a wall. The inlet is set as a Velocity-Inlet with a Velocity of 1020.97 m/s (Mach 3) and a Gauge Pressure of 101325 Pa. The Outlet is a Pressure-Outlet with the same Gauge Pressure of 101325 Pa. I left the Operating Pressure Condition as 0 Pa. Were these the right choice? For my solution method, I left it as the default (new to CFD so I am still learning all these schemes) SIMPLE scheme with a Least Squares Gradient with everything as a second order discretization. I left everything else as is and these are the residuals I am getting... Does anyone know where I went wrong with my problem? Thanks in advance |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
courant number increases to rather large values | 6863523 | OpenFOAM Running, Solving & CFD | 22 | July 5, 2023 23:48 |
p_rgh initial residual no change with different settings | manuc | OpenFOAM Running, Solving & CFD | 3 | June 26, 2018 15:53 |
AMI interDyMFoam for mixer nu problem | danny123 | OpenFOAM Programming & Development | 8 | September 6, 2013 02:34 |
dynamic Mesh is faster than MRF???? | sharonyue | OpenFOAM Running, Solving & CFD | 14 | August 26, 2013 07:47 |
flow problem upon a step | flow_CH | FLUENT | 8 | July 18, 2013 08:47 |