Orr-Sommerfeld and Squire operators for channel flows

版本 1.0.0 (7.0 KB) 作者: Jitong Ding
This repository contains codes forming the Orr-Sommerfeld and Squire operators for channel flows.
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This repository contains some codes to generate the figures in the paper "analysis of fluid systems: stability,receptivity,sensitivity".
Code 'resolvent_norm.m' plots Fig.12 (Couette flow) in the paper.
Code 'transient_energy.m' plots Fig.4 (Poiseuille flow) in the paper.
Code 'H2_norm.m' plots contour of the H2 norm of the resolvent as functions of streamwise and spanwise wavenumbers for Poiseuille flow.
Code 'eig_pseudo.m' plots Fig.6 (Couette flow) in the paper.
Four functions 'cheb.m', 'clenCurt.m', 'oss_operator.m' and 'eigenvalue_selection.m' are needed for the main functions.
Variables (Re, kx, ky, type of flow, number of eigenvalues) can be modified at the start of each main function code.

引用格式

Jitong Ding (2025). Orr-Sommerfeld and Squire operators for channel flows (https://ww2.mathworks.cn/matlabcentral/fileexchange/171664-orr-sommerfeld-and-squire-operators-for-channel-flows), MATLAB Central File Exchange. 检索时间: .

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1.0.0