test_1D_KineticEnergy.sh
54d9314b39ddmaster

test_1D_KineticEnergy.sh
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			mpirun -np 1 ../../../clients/AMEL $1 $2

			#kinetic energy computation analytical equation
			#"KE = 0.5rhoLx*vel^2"
			r0=1.23157195294235
			rho=$(echo " 39.95/$r0" \| bc -l)
			Lx=$(echo "2000*$r0" \| bc -l)
			velx=2.0
			unit_conversion=2390.06
			keAnalytic=$(echo "0.5$rho$Lx($velx$velx)" \| bc -l)
			keElem=$(awk -v unit=$unit_conversion 'FNR == 3 {printf "%.4f", ($4/unit)}' energy.txt)
			keNode=$(awk -v unit=$unit_conversion 'FNR == 3 {printf "%.4f", ($6/unit)}' energy.txt)

			diffe1=$(awk -v a=$keAnalytic -v b=$keElem 'BEGIN{printf "%.4f", (a-b)}')
			diffe2=$(awk -v a=$keAnalytic -v b=$keNode 'BEGIN{printf "%.4f", (a-b)}')
			echo "1) Actual kinetic energy = " $keAnalytic
			echo "2) Kinetic energy based on elements = " $keElem
			echo "3) Kinetic energy based on nodes = " $keNode
			echo "4) Energy difference (1-2) = " $diffe1
			echo "5) Energy difference (1-3) = " $diffe2

			reference=0.2460
			error=$(awk -v n1=$diffe1 -v ref=$reference 'BEGIN{if(n1-ref>=0) printf "%.4f", (n1-ref); else printf "%.4f", -(n1-ref);}')
			flag=$(awk -v err=$error 'BEGIN{if(err <= 1e-3) print 0; else print 1;}')
			if [ $flag == "0" ]; then
			exit 0;
			else
			exit 1;
			fi