wall shear stress #1 Todd Guest Posts: n/a Dear all, I am writing a UDF to get the wss from fluent solver so that I can calculate the wss gradient and OSI. The problem is: I used this macro NV_V(wallshear, =, C_STORAGE_R_N3V(f,thread,SV_WALL_SHEAR)) to get the wall...
Wall shear stress #1 lagha Guest Posts: n/a hi! I tried to compare the value of the wall shear stress on the walll given by fluent with three differents methodes I have done (UDF) and i have found that the value given by fluent is not correct (less than 10% with my methodes)....
The FIDAP software (Fluent Corp.) was used to carry out the simulation by solving Navier-Stokes equations. The FIELDVIEW software (Version 10.0, Intelligent Light, Lyndhurst, NJ) was used for the visualization of flow patterns and the quantification of wall shear stress. Post processing was done...
我的问题是: 模型由solidworks建模,分别建立罐体和换热管,然后装配后另存为igs格式的文件,但是即使我在ICEM里将换热管和罐体的交界面合并后,导入fluent中仍会出现 一个wall:2,由于我要模拟的是换热管内流体通过换热管给罐内油品加热,所以必须设置这个交界面处的壁面边界条件,然后问题出现了,这里有两个wall,该怎 ...
The fluid very close to the wall is dominated by viscous shear in absence of the turbulent shear stress effects () and it can be assumed that the shear stress is almost equal to the wall shear stress throughout the layer.Thus we have: ...
A strategy for dealing with turbulent flows over a two dimensional surface mounted obstacle using the wall y+ as guidance in selecting the appropriate grid configuration and corresponding turbulence models are investigated using Fluent. The CFD results were compared with experimental data from Zeidan's...
Maximum shear stress along one θ-line can be twice as high as that along a different line. All these differences may be of clinic significance Conclusion A 3-D thin-wall model with fluid–structure interactions was introduced and solved using ADINA to investigate blood flow in collapsible ...
There is no fix criterion for the evaluation of convergence. Residual definition varies with the nature of the problem. For most problems, the default convergence criterion in FLUENT is sufficient. This criterion requires that the scaled residuals decrease to 10−3for all equations except the ener...
I assume that for X direction wall shear stress=mu*du/dy and for Y DIRECTION =mu*dv/dx .please confirm. Dear Rakesh, Unfortunately, there is a big bug in computing wall shear stress in FLUENT. To write a UDF for this purpose, use normal vectors of each element to project tensor eleme...
Rep Power:6 Hello everyone, I have a problem regarding the WSS conversion from OpenFOAM to Fluent. Actually, I can obtain WSS results but when I convert the results to Fluent, then WSS values are seen to be zero, although they are not (I write "wallShearStress 19" in foamToFluent...