46 Questions 41 Answers 0 Followers
Questions related from Aamir Sultan
Hello Everyone , Pressure far-field boundary condition is often recommended for flows with varying density , but why does it require so larger outer domains. Regards Aamir Sultan
01 January 2020 3,222 3 View
Hello Everyone ! I have been having this question in mind for quite a long time that we have this huge amount of data available in the form of wind tunnel experiments , in-flight data and...
01 January 2020 2,166 8 View
Does continuity , momentum and energy laws remain conserved when we use local refinement in adaptive meshes ?
01 January 2020 4,143 4 View
Hello Everyone , I was wondering is there any literature available on the extent of transitional regime in space and that for how long does it last ? Regards Aamir Sultan
01 January 2020 1,370 3 View
Hello Everyone I am simulating an airfoil at Low Reynolds Number flow Regime Re=10^5 , in this particular case a laminar boundary layer separates , forming a laminar separation bubble , then...
12 December 2019 3,846 3 View
Hello Everyone ! It is alway said that SA model is apporopriate for adverse pressure gradients then how come it lacks the ability to accurately predict separation ?
12 December 2019 524 2 View
Hello Everyone , Hope you are doing fine . I have this question about the reference values , that which length should one use while doing external aerodynamic CFD simulation of a full aircraft...
11 November 2019 5,306 4 View
Hello Everyone , Hope you are doing fine . I was going through this paper of P. Cosyn and J. Vierendeels on ''Numerical Investigation of Low-Aspect-Ratio Wings at Low Reynolds Numbers'' in which...
09 September 2019 1,630 2 View
Hello Everyone , I am doing a 3D simulation of a 3D wing at a Reynold's number of 10^5 and a mach number of 0.02 . When I use pressure based solver my solution diverges within few iterations ....
03 March 2019 5,478 2 View
Hello Everyone , Hope you are doing great . I am simulating a 3D wing of aspect ratios a) 0.5 b)1 c)1.5 d) 2 Why is it so that as I move from AR=0 to AR=2 the difference between CFD and...
02 February 2019 4,344 3 View
Hello Everyone ; Hope you are doing great . I have to change the axis of rotation from default setting i,e z-axis to x-axis in the given UDF ? How can I do that ?...
02 February 2019 9,606 4 View
Hello Everyone , I am simulating a 3D airfoil at Reynold's numbers of 10e5 . I am using Spalart Allmaras Turbulence model . I was wondering what value of Y+ I must use while using SA model ....
02 February 2019 1,386 4 View
Hello Everyone , Hope you are doing well. I have to rotate a 3D wing at different roll angles with the help of udf in Ansys fluent. Can someone provide me literature regarding this . Regards...
02 February 2019 6,514 2 View
Hello Everyone , I am simulating a 3D airfoil . The values of Lift coefficients are within the bounds of 10% error compared to the experimental values . However , the values of drag coefficient...
02 February 2019 3,536 3 View
Hello Everyone ! I am simulating a 3D airfoil at higher angle of attacks (post stall regime) . I wanted to know that is RANS formulation capable enough to resolve tip vertices or not . Regards
02 February 2019 10,084 28 View
'Hello Everyone , Hope you are doing fine . I am a graduate student and I have not much idea of the scientific journals . Can you suggest me some authentic journals where I could submit my work...
01 January 2019 5,179 7 View
Hello Everyone , I am running a 3D simulation of an airfoil . The results I am getting for drag or lower than that of experimental results . I wanted to know could I calculate the value of lift...
01 January 2019 8,950 4 View
Hello Everyone , I am simulating a 3D airfoil in fluent . The results I am getting for lift coefficient are within 5% error limit of the experimental values . However , the results for drag...
01 January 2019 5,681 2 View
Hello Everyone , I have to do 3D hexa meshing of a Wing in Spherical Domain as shown in the attached figure . Can you give me some tips to go about doing its Hexa Meshing in ICEM CFD . Thanks
01 January 2019 9,711 4 View
Hello Everyone ! I am doing validation of a research article . The wind tunnel used in experiment is an open circuit , low turbulence wind tunnel . I am not sure what boundary conditions should...
01 January 2019 9,081 9 View
Hello Everyone , I am working on a 3D airfoil for quite a bit of time . I am comparing the results obtained from wind tunnel with that of CFD simulation . Although , the results of my 2D...
01 January 2019 9,510 3 View
Hello Everyone , Hope you are doing fine . I am running a 2D analysis of flow over an airfoil at Re Number=10^5 I am running a steady state , density based solver simulation of the case . At...
12 December 2018 732 4 View
Hello Everyone ! Hope you are doing fantastic . I have been working on meshing of a 3D Airfoil in ICEM CFD for more than 3 weeks but I am not able to achieve a low quality of 0.1. 2x2x2 and...
12 December 2018 884 2 View
Hello Everyone , I am doing tetra prism meshing of a 3D airfoil in ICEM CFD . When I apply prism layer on the boundary of airfoil . I get very high number of nodes , more than 9 million nodes ....
12 December 2018 5,363 0 View
Hello Everyone , As we know that at higher angle of attacks and low Reynolds's number regimes delta wings tend to undergo oscillation about longitudinal axis , that is Rolling Oscillation . The...
11 November 2018 1,825 6 View
Hello I am running a simulation of rectangular oscillating plate about its center , free stream flow velocity is 12.6 m/s , which makes my mach no to be 0.037 . I have defined the far surfaces of...
10 October 2018 10,223 0 View
Hello Everyone , I am doing analysis of a rotating airfoil . For , rotational purpose I have created a sphere around airfoil . The setup is enclosed by a rectangular box. How can I define...
09 September 2018 4,614 1 View
Hello Everyone , I am giving sinusoidal oscillatory motion to a 3D airfoil about longitudinal axis (lateral oscillations ) . How can I define "X-axis" as axis of rotation . As you know that...
09 September 2018 3,503 0 View
Non-Linear buckling analysis of laminated composite shells with different cutouts .
04 April 2017 9,675 6 View
Non-Linear buckling analysis of Laminated composite shells.
04 April 2017 3,332 1 View
I am doing a buckling analysis of laminated composite with different cutouts.
03 March 2017 7,822 4 View
I am doing a project on buckling analysis of laminated composites with different cutouts.
03 March 2017 5,536 0 View
Hi, I am doing a project on buckling analysis of laminated composites with different cutouts having same area.
02 February 2017 3,518 1 View
Non linear buckling analysis.
01 January 1970 2,192 1 View
I want to do buckling analysis of anisogrid and isogrid composite lattice.
01 January 1970 1,150 2 View
Hi, I am doing a project on buckling analysis of Laminated Composites With Different Cutouts under axial loading.
01 January 1970 4,503 2 View
Hi , I am doing a project on buckling analysis of Laminated Composite . I want to know what are some major causes of Fiber Waviness and what role buckling load plays in such type of defects .
01 January 1970 6,905 1 View
I am doing a project on Buckling Analysis of Laminated Composited with different cutouts.
01 January 1970 4,896 4 View
I am doing buckling analysis of laminated composite shells with different cutouts under axial compression in abaqus . As a shell has different type of geometrical imperfection how can I introduce...
01 January 1970 8,414 5 View
Non Linear buckling analysis of laminated composite shells with different cutouts under axial compression in abaqus.
01 January 1970 5,169 4 View
I am doing a buckling analysis of laminated composite shell with different cutouts.
01 January 1970 8,742 2 View
HI, I am performing a non linear buckling analysis .the thickness of the cylindrical shell is 3 mm .If I want to use an imperfection of 10% of thickness does below imperfection is the correct one...
01 January 1970 6,753 0 View
Hello Everyone , I am running a simulation on rectangular wing at subsonic speed . I was wondering how can I find the individual vortex shedding frequency of the each vortex on tip of the wing ,...
01 January 1970 8,177 12 View
Hello Everyone ! I want to perform FFT for the case when a rectangular wings is oscillating in direction of roll . The vertices, being generated at the tips are also changing their locations as...
01 January 1970 1,686 3 View
how to define scale factors of various modes in *imperfection? On what basis we choose this scale factor ? Is it compulsory that we should choose it as some percentage of model's geometrical...
01 January 1970 6,160 2 View
I am doing a project on buckling analysis of Laminated Composites Shell having different cutouts?
01 January 1970 512 1 View
