27 Questions 28 Answers 0 Followers
Questions related from Aamir Sultan
An aircraft is consist of many sub-parts , while estimating the Reynolds number and y+ value first layer height which length do we consider as the characteristic length to be used in the...
16 March 2020 8,142 4 View
If one has do to some really complex shape optimization for the external aerodynamic problems . Is the adjoint solver has the enough capabilities to do the job without having command on MRF add on...
06 March 2020 6,940 1 View
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
11 January 2020 8,964 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...
28 December 2019 5,449 3 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...
29 November 2019 7,492 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 ....
13 February 2019 3,647 4 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...
08 February 2019 2,148 2 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...
30 January 2019 4,923 3 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...
28 January 2019 5,617 6 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...
22 January 2019 9,129 8 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...
18 January 2019 6,017 3 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
17 January 2019 3,884 3 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...
05 November 2018 3,282 4 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...
12 May 2017 5,284 0 View
I am doing non linear buckling analysis on laminate composite shell , as we know that we have different type of imperfection in cylindrical shells that is geometric and material imperfections . My...
28 April 2017 9,755 5 View
I am making a shell of fibre reinforced composite material. I know the area of shell. Lets say its 'X' m^2. Fibre glass of 600 grams/m^2 is used. I can find the weight of fibre as, Weight fraction...
16 March 2017 6,754 4 View
Hi, I am doing a project on buckling analysis of Laminated Composites With different Cutout under Axial Loading .
03 March 2017 2,379 8 View
HI I am performing buckling analysis on composite shells in abaqus , I need to extract general stiffness matrix . How can I do that ?
20 January 2017 652 3 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 314 9 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 3,426 3 View
Buckling analysis of laminated composite shells with cutouts.
01 January 1970 3,754 4 View
0-90-90-0 or 0-90-0-90 (Fibre Reinforced Laminated Composite )
01 January 1970 9,922 9 View
Hi , I am doing bucking analysis of E glass polyester based composite.
01 January 1970 5,593 2 View
Hi, I am doing a project on buckling analysis of laminated composites with different cutouts in simulation software abaqus .
01 January 1970 6,766 3 View
Hi , I am doing a project on buckling analysis of laminated composite plates with different cutouts . I would like to know what are some suitable methods for finding the volume fraction of fibers .
01 January 1970 720 3 View
Hi, I am working on buckling analysis of composite panels having different cutouts .The matrix that I am using in the fabrication of composites are Polyurethane based SA2100 resin and Krasol...
01 January 1970 3,967 1 View
Hello, I am performing a buckling analysis of laminate composite shell in abaqus , I am not sure about boundary conditions and constraints that should be applied to it, the experimental setup...
01 January 1970 2,809 3 View
