From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

---
 965/CH7/EX7.42/42.sci | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 965/CH7/EX7.42/42.sci

(limited to '965/CH7/EX7.42/42.sci')

diff --git a/965/CH7/EX7.42/42.sci b/965/CH7/EX7.42/42.sci
new file mode 100644
index 000000000..909012ba9
--- /dev/null
+++ b/965/CH7/EX7.42/42.sci
@@ -0,0 +1,26 @@
+clc;
+clear all;
+disp("heat transfer from plate")
+L=0.8;//m
+U=45;//m/s
+ts=300;//degree C
+ta=20;// degree C
+Re=5*10^5;
+k=0.03638;// W/m.C
+v=30.08*10^(-6);//m^2/s
+Pr=0.682;
+xc=Re*v/U;
+h=0.664*(k/xc)*Re^0.5*Pr^(1/3);
+A=xc*1;
+Qlam=h*A*(ts-ta);
+disp("W",Qlam,"Heat transfer from laminar portion =")
+ReL=U*L/v;
+h=0.036*k/(L-xc)*(ReL^0.8-Re^0.8)*Pr^(1/3)
+Qturb=h*(0.8-A)*(ts-ta);
+disp("W",Qturb,"Heat transfer from turbulent portion =")
+Qtotal=Qlam+Qturb;
+disp("W",Qtotal,"Heat transfer from both portions =")
+h=0.036*k/L*(ReL^0.8)*Pr^(1/3);
+Qt=h*L*(ts-ta);
+e=(Qt/Qtotal-1)*100;
+disp("%",e,"Percentage error =")
-- 
cgit