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The Spalart-Allmaras equation is given by (3) (4) Values of constants are given as follows b) Materials Properties of the fluid used in Simulation TABLE I Properties of Fluid Fluid Carbon-di-oxide(CO2) Density 1.7878 kg/m3 Cp 840.37 J/Kg-k Thermal Conductivity(K) 0.0145 W/mK Viscosity 1.37e-05 Kg/m-s.
Flow Supersonic c) Boundary Conditions for the Nozzle Exit Pressure: Pexit(ω) = 0.12 sin(ω) + pexit (4.1) Where, ω = circular frequency of unsteady pressure (rad/s) Pexit = mean exit pressure (atm) In this case, ω = 2200 rad/s, and Pexit = 0.7369 atm. 4) Analysis After model, materials and boundary conditions are selected, simulation is done by using ANSYS Fluent 14.
Future work can be done by considering various other angles of attacks, types of flows and materials.
Mazian, Drag Analysis of a Aircraft wing model wth and without a feather like Winglet, World Academy of Science, Engineering and Technology International Journal of Mechanical, Industrial Science and Engineering Vol:5 No:9, 2011 [3] K.M.Pandey and T.Sivasakthivel, CFD Analysis of Mixing and Combustion of a Scramjet Combustor with a Planer Strut Injector, International Journal of Enviromental Science and Development, Vol. 2, No. 2, April 2011 [4] Virendra kumar and Prateek Srivastava, CFD Analysis of Twin Jet Supersonic Flow with Fluent Software, Current Trends in Technology and Sciences Volume 1, Issue : 2 , (Sept.-2012) ISSN : 2279-0535
,Computational Fluid Dynamics in Aerospace Industry in India, Defence Science Journal, Vol. 60, No. 6, November 2010, pp. 639-652

Experimental procedures Materials processing.
Gouda: Journal Materials Science: Material Electron, Vol. 19 (2008), p. 81-84
Hikam: International Journal of Basic & Applied Sciences, Vol. 14 (2014), p. 17-20
Eric, in: Fundamentals of Materials Science: The Microstructure-Property Relationship Using Metals as Model Systems, 1st Edition, University of Stuttgart Heisenbergstr, Germany (2010)
El-Taher: Materials & Design, Vol. 47 (2013), p. 607-614.

In the fields of energy and aerospace, common materials can’t used under the tough working conditions, such as high temperature, high pressure, and high corrosion.
So, the micro parts involving micro grooves, micro cavities and complex 3D micro structures in tough working conditions need fabricating by high performance metals or alloy materials.
Nickel-based superalloy is one of the most promising materials that can be used in those conditions.
Ertl: Science 289/5476 (2000), p. 98-101 [3] B.
Chu: Journal of Micromechanics and Microengineering 15/1 (2005), p. 124-129

The material parameters are elastic modular E=2.1×1011Pa, density =7800kg/m3, Poison ration=0.3.
So with the same material and the same length, as the angle changed, the modality of shell changes at the same time.
Numerical calculation of sound characteristic of hull sonar by FEM/BEM, Journal of East China Shipbuilding Institute(Natural Science Edition).17(2003), p.6-10.
Sound radiation of a submerged periodic ring-stiffened cylindrical shell by space-harmonic analysis, Journal of Huangzhong University of Science and Technology(Nature Science Edition). 35(2007), p.96-98.
Chinese Science Bulletin, 50(2005), p.2529-2533.

Experimental Materials.Lyophilized powder of superoxide dismutases was purchased from East China University of Science and Technology.
Yang et al: Journal of Inner Mongolia University. 34(2003),p. 294 [3] T.
Chen et al: Journal of Inner Mongolia University, 28(1997), p.778 [4] J.
Su et al: Journal of Inner Mongolia University, 32(2001), p. 707 [7] H.
Zhou, et al: Chinese Pharmaceutical Journal. 29(1994), p. 680 [9] D.

Studies on incorporating waste materials into bricks is not new as this can help to reduce the amount of waste materials disposal at the same time [4,5].
Both materials have thermal conductivity lower than air and a higher specific heat [6,7].
This indicates that by using polystyrene or sawdust as filler material, the temperature of the brick is much more regulated compared to the other materials studied.
The thermal resistance of the brick when filled with these materials are found to the highest.
Thermal Science 17 1119-1123 [6] Cengel, Y A 2007.

The higher energy absorption was obtained for the materials that presented more intergranular fracture mode.
Braga: Materials Science Forum Vol. 899 (2017), p. 329
Louro: Materials Science Forum Vols. 798-799 (2014), p. 665
Meyers: Dynamic Behavior of Materials.
Chen: Materials (Basel) Vol. 12 (2019), p. 2240

Introduction Austenitic stainless steels are materials which are resistant against the chemical and electrochemical influences of the atmosphere, water, gases, acids and bases [1], so they are used widely in aeronautical industry, chemical industry and medical field.
Dolinsek: Journal of Materials Processing Technology, Vol.133 (2003), pp.63
Sliwka: Journal of Materials Processing Technology, Vol.89-90 (1999), pp.117
Liu: Journal of Materials Processing Technology, Vol.129 (2002), pp.81
Liu: Key Engineering Materials, Vol.233 (2003), pp.503

Production and Problems of Wood-Based Panel The manufacture of wood-based panels not only uses extensive reinforcing materials of different thickness veneer, wood and plant fiber but also needs a large amount of other auxiliary materials of adhesives, fillers and additives.
The filler should be the inactive neutral or slightly alkaline powder materials.
Li: Journal of Beijing Forestry University, Vol. 31(2009), p. 123 [3] Q.J.
Liu: Journal of Fujian Forestry Colleague, Vol. 25(2005), p. 97 [4] X.Z.
Liang, et al.: Advanced Materials Research, Vol. 178(2011), p. 97 [7] Z.

The broad range of applications as mentioned earlier is due to that GaN being a direct and wide energy band-gap material (~3.4 eV at 300 K) compared to other semiconductors materials like Si (1.12 eV) and GaAs (1.42 eV) [10-12].
The Raman scattering spectrum is becoming a very beneficial tool for the characterization of nanostructured materials.
Zhang, Materials Science and Engineering A 286 (2000) 165–168
Saykally, nature materials 1(2002) 106-110
Li, L.Qin, Z.Yang, Journal of Materials Processing Technology 208 (2008) 255–258