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 --- 1910/CH2/EX2.14/Chapter214.sce | 55 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100755 1910/CH2/EX2.14/Chapter214.sce (limited to '1910/CH2/EX2.14') diff --git a/1910/CH2/EX2.14/Chapter214.sce b/1910/CH2/EX2.14/Chapter214.sce new file mode 100755 index 000000000..b7b3aeeca --- /dev/null +++ b/1910/CH2/EX2.14/Chapter214.sce @@ -0,0 +1,55 @@ +// Display mode +mode(0); +// Display warning for floating point exception +ieee(1); +clear; +clc; +disp("Introduction to heat transfer by S.K.Som, Chapter 2, Example 14") +//Considering two very long slender rods of the same diameter but of different materials. +//The base of each rod is maintained at 100°C while the surfaces of the rod are exposed to 20°C +//By traversing length of each rod with a thermocouple it was observed that tempratures of rod were equal at the position xA=0.15m and xB=0.075 from base. +xA=0.15; +xB=0.075; +//Thermal conductivity of rod A is known to be kA=72 W/(m*K) +kA=72; +//In case of a very long slender rod we use the tip boundary condition thetaL=0 as L--->infinity +//Therfore we can write for the locations where the tempratures are equal thetab*e^(-mA*xA)=thetab*e^(-mB*xB) or xA/xB=mB/mA,Again mB/mA=(kA/kB)^0.5 +//So kB=kA*(xB/xA)^2 +//The thermal conductivity of Rod B iskB +disp("The thermal conductivity of Rod B kB in W/(m*K) is ") +kB=kA*(xB/xA)^2 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + -- cgit