From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 746/CH9/EX9.04/9_04.sce | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100755 746/CH9/EX9.04/9_04.sce (limited to '746/CH9/EX9.04') diff --git a/746/CH9/EX9.04/9_04.sce b/746/CH9/EX9.04/9_04.sce new file mode 100755 index 000000000..db1fd7c5a --- /dev/null +++ b/746/CH9/EX9.04/9_04.sce @@ -0,0 +1,41 @@ +//Displacement thickness and stress// +pathname=get_absolute_file_path('9.04.sce') +filename=pathname+filesep()+'9.04-data.sci' +exec(filename) +//Reynolds number: +ReL=U*L/v +//FOR TURBULENT FLOW +//Disturbance thickness(in m): +dL1=0.382/ReL^0.2*L +//Displacement thickness(in m): +function y=f(n),y=dL1*(1-n^(1/7)) +endfunction +dl1=intg(0,1,f) +//Skin friction coefficient: +Cf1=0.0594/ReL^0.2 +//Wall shear stress(in N/m^2): +tw1=Cf1*0.5*d*U^2 +//For LAMINAR FLOW: +//Disturbance thickness(in m) +dL2=5/sqrt(ReL)*L +//Displacement thickness(in m): +dl2=0.344*dL2 +//Skin friction coefficient: +Cf2=0.664/sqrt(ReL) +//Wall shear stress(in N/m^2): +tw2=Cf2*0.5*d*U^2 +//COMPARISON OF VALUES WITH LAMINAR FLOW +//Disturbance thickness +D=dL1/dL2 +//Displacement thickness +DS=dl1/dl2 +//Wall shear stress +WSS=tw1/tw2 +printf("\n\nRESULTS\n\n") +printf("\n\nDisturbace thickness: %.3f m\n\n",dL1) +printf("\n\nDisplacement thickness: %.3f m\n\n",dl1) +printf("\n\nWall shear stress: %f N/m^2\n\n",tw1) +printf("\n\nCOMPARISON WIH LAMINAR FLOW\n\n\n") +printf("\n\n Disturbance thicknes: %.3f \n\n",D) +printf("\n\nDisplacement thickness: %.3f\n\n",DS) +printf("\n\nWall shear stress: %.3f \n\n",WSS) -- cgit