• Numerical Modelling of the Magnus Force and the Aerodynamic Torque on a Spinning Sphere in Transitional Flow 

  Volkov, Alexey N. (2007)

  Three dimensional transitional flow over a spinning sphere is studied numerically by the direct simulation Monte Carlo method. The flow is assumed to be steady-state, gas molecules interact with each other as hard spheres ...
• 3D Numerical Modelling of a Rarefied Gas Flow in the Nearby Atmosphere around a Rotating Cometary Nucleus 

  Volkov, Alexey N.; Lukyanov, German A. (2007)

  A combined 3D model of a nearby atmosphere around an arbitrary rotating spherical cometary nucleus is developed. The model includes a 3D unsteady model of solar radiation absorption and heating of the nucleus material ...
• Kinetic Model of a Collisional Admixture in Dusty Gas and its Application to Calculating Flow Past Bodies 

  Volkov, Alexey N.; Tsirkunov, Yury M. (2000)

  Using the methods of statistical physics, the basic kinetic equation describing the dynamics of a polydisperse admixture of solid particles in a dilute dusty-gas flow is derived. Particle rotation, inelastic collisions, ...
• Fluid/Kinetic Hybrid Simulation of Atmospheric Escape: Pluto 

  Tucker, Orenthal J.; Erwin, Justin T.; Johnson, Robert E.; Volkov, Alexey N.; Cassidy, Timothy A. (2011)

  A hybrid fluid/molecular kinetic model was developed to describe the escape of molecules from the gravitational well of a planet's atmosphere. This model was applied to a one dimensional, radial description of molecular ...
• Kinetic Simulations of Thermal Escape from a Single Component Atmosphere 

  Volkov, Alexey N.; Tucker, Orenthal J.; Erwin, Justin T.; Johnson, Robert E. (2011-06-06)
• Effect of Bending Buckling of Carbon Nanotubes on Thermal Conductivity of Carbon Nanotube Materials 

  Volkov, Alexey N.; Shiga, Takuma; Nicholson, David; Shiomi, Junichiro; Zhigilei, Leonid V. (2012-03-01)
• Atomistic Simulations, Mesoscopic Modeling, and Theoretical Analysis of Thermal Conductivity of Bundles Composed of Carbon Nanotubes 

  Volkov, Alexey N.; Salaway, Richard N.; Zhigilei, Leonid V. (2013-09-10)

  The propensity of carbon nanotubes (CNTs) to self-organize into continuous networks of bundles has direct implications for thermal transport properties of CNT network materials and defines the importance of clear ...
• Heat Conduction in Carbon Nanotube Materials: Strong Effect of Intrinsic Thermal Conductivity of Carbon Nanotubes 

  Volkov, Alexey N.; Zhigilei, Leonid V. (2012-07-24)

  Computational study of thermal conductivity of interconnected networks of bundles in carbon nanotube (CNT) films reveals a strong effect of the finite thermal conductivity kT of individual nanotubes on the conductivity ...
• Thermally Driven Atmospheric Escape: Transition from Hydrodynamic to Jeans Escape 

  Volkov, Alexey N.; Johnson, Robert E.; Tucker, Orenthal J.; Erwin, Justin T. (2011-02-16)
• Thermal Escape in the Hydrodynamic Regime: Reconsideration of Parker's Isentropic Theory Based on Results of Kinetic Simulations 

  Volkov, Alexey N.; Johnson, Robert E. (2013-03-10)
• Molecular-Kinetic Simulations of Escape from the Ex-Planet and Exoplanets: Criterion for Transonic Flow 

  Johnson, Robert E.; Volkov, Alexey N.; Erwin, Justin T. (2013-12-06)

  The equations of gas dynamics are extensively used to describe atmospheric loss from solar system bodies and exoplanets even though the boundary conditions at infinity are not uniquely defined. Using molecular-kinetic ...
• Volatile Loss and Classification of Kuiper Belt Objects 

  Johnson, R. E.; Oza, A.; Young, L. A.; Volkov, A. N.; Schmidt, C. (2015-08-10)

  Observations indicate that some of the largest Kuiper Belt Objects (KBOs) have retained volatiles in the gas phase (e.g., Pluto), while others have surface volatiles that might support a seasonal atmosphere (e.g., Eris). ...
• A Criterion for the Validity of Parker's Model in Thermal Escape Problems for Planetary Atmospheres 

  Volkov, Alexey N. (2015-10-01)

  Mass escape rate of mon- and diatomic gases from a planetary atmosphere is studied based on Parkerʼs model for a broad range of surface conditions. The escape rate is found to follow two asymptotic regimes, namely, high- ...
• Characterization and comparison of white layer by hard turning versus grinding 

  Sahani, Jasdeep Singh (University of Alabama Libraries, 2004)

  Compared with grinding, hard turning has the potential to make a variety of precision components of superior surface integrity, such as bearings, gears, cams, shafts, tools, dies, etc., while reducing investment, increasing ...
• Computational and experimental study of geometry modifications inside a flow-blurring injector 

  Vardaman, Nathan James (University of Alabama Libraries, 2018)

  Liquid fuel atomization is widely used for combustion in many applications. With the strong emphasis on emissions regulations coupled with the ever increasing drive to improve energy efficiency, all aspects of combustion ...
• Strain rate and temperature dependence on the constitutive behavior of advanced structural alloys for aerospace systems 

  Rodriguez, Omar Leonardo (University of Alabama Libraries, 2018)

  Titanium alloys and Nickel-based superalloys are omnipresent in advanced aerospace and terrestrial systems due their combination of specific material properties (normalized by density) and superb performance at elevated ...
• Application of macroscopic elasticity models to predict microstructurally small crack growth 

  Cauthen, Tanner (University of Alabama Libraries, 2018)

  The need for a more lightweight and structurally stable alloy is evident in industry. Before a specific alloy is put into industrial use, the alloy must be properly tested such that structural integrity is insured. In this ...
• Acoustic methods for regionalizing an impact force acting on a helmet structure 

  Davis, Jacob (University of Alabama Libraries, 2018)

  It is often desired to know the location and magnitude of a force acting on a structure. Unfortunately, it is not always possible or desirable to install a sensor at the force location, such as when the force location is ...
• Multiscale investigation on surface integrity and performance of metal parts by selective laser melting 

  Li, Chao (University of Alabama Libraries, 2018)

  Selective laser melting (SLM) is a popular metal additive manufacturing process which has drawn a great attention in the past decade. It can make functional metal parts directly from the CAD data in a layer upon layer ...
• Catalytic converter thermal model for hybrid electric vehicle engine on/off control strategy development 

  Young, Karissa (University of Alabama Libraries, 2017)

  A 3-dimensional (3-D), thermochemical catalytic converter model was developed to investigate the effects of engine-off periods typical in hybrid electric vehicle (HEV) operation on overall emissions conversion effectiveness. ...

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