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Daniel Samandi

Augmenting RANS With Flow Transition Equations For Better Drag Prediction On 2D Airfoils

Augmenting RANS With Flow Transition Equations For Better Drag Prediction On 2D Airfoils

As already discussed in My previous post, ordinary RANS models such as k-w-sst seem to struggle to get reasonable drag values, especially in low to medium reynolds flows, because they are not equipped to properly predict the tranisition point from laminar to turbulent flows, which can signficantly affect the drag

Usefulness of Taper Ratio in low to medium Reynolds Number Environments - CFD Analysis

Usefulness of Taper Ratio in low to medium Reynolds Number Environments - CFD Analysis

Overview and Objectives The objective of this study is to determine whether it is efficacious to taper a low-reynolds wing for the purposes of drag reduction. Ordinarily, increasing taper increases the Oswald efficiency of the wing and thereby reduces the induced drag, however, at lower reynolds numbers, tapering a wing

Effects of Wing Sweep In Subsonic Flow Regimes - RANS CFD Analysis

Effects of Wing Sweep In Subsonic Flow Regimes - RANS CFD Analysis

Overview and Objectives The objective of this study is to determine the effects of wing sweep on a High AR, tapered trapezoidal wing. Aspect and Taper ratio were kept constant at 10 and 0.5 respectively in order to ensure that wing sweep was the only independent variable at play.

Comparison Between Xfoil & RANS CFD Aerodynamic Predictions - 2D Airfoil

Comparison Between Xfoil & RANS CFD Aerodynamic Predictions - 2D Airfoil

Overview and Objectives This project aimed to compare the relative accuracy of several different RANS models compared to the viscous/inviscid methods of Xfoil, which was indirectly derived from the XFLR5 program. Several different airfoils with varying levels of thickness, camber, and leading edge radii were chosen so as to

CFD Analysis of Supersonic Airfoil

CFD Analysis of Supersonic Airfoil

Special thanks to Zoe Watson and Niccole Riera for their help on this project Overview and Objectives This project concerns supersonic, compressible, turbulent flow past a diamond shaped airfoil, having 4 equal length sides. Using the simplified diamond shape with these conditions, the intention is to characterize and compare the