Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys
Advanced Engineering Materials, EarlyView.An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi +5 more
wiley +1 more source
Conditions aux limites dans un gaz raréfié: loi de réflexion à la paroi, saut de température, vitesse de glissement, couche de Knudsen Boundary conditions in rarefied gas flows: scattering kernal, temperature jump, slip velocity, Knudsen layer problem [PDF]
, 2008 This thesis deals with the problem of gas/wall interaction and boundary conditions in rarefied gas flows. Recent developments in microsystems and atmospheric re-entry flight let appear new flow fields where boundary conditions are very important.
Dadzie, S.K.
core
Simulation of hypersonic rarefied flows with the immersed‐boundary method [PDF]
, 2011 This paper provides a validation of an immersed boundary method for computing hypersonic rarefied gas flows. The method is based on the solution of the Navier‐Stokes equation and is validated versus numerical results obtained by the DSMC approach.
de Tullio M. D., De Palma P., Bruno D.
core +1 more source
Multilayer Self‐Limiting Electrospray Deposition via Stepped Voltage Bias
Advanced Engineering Materials, EarlyView.Self‐limiting electrospray deposition (SLED) uses a high voltage to generate and deposit a charged payload on a target surface. The coating retains its charge, repelling newly arriving material. SLED thickness can be decreased by applying a secondary bias to the target.
Madhuri Deb +3 more
wiley +1 more source
Langevin simulation of gas flows [PDF]
, 2014 A stochastic algorithm based on the Langevin equation has been recently proposed to simulate rarefied gas flows[1,2].Compared with the direct simulation Monte Carlo(DSMC)method[3],the Langevin method is more efficient in simulating small Knudsen number ...
张俊, 樊菁
core
A Cross-Regime Coupling Method for Conjugate Heat Transfer in Microscale Systems
AerospaceIn this work, a partitioned coupling algorithm is developed by integrating the improved discrete velocity method (IDVM) with the lattice Boltzmann flux solver (LBFS) to address conjugate heat transfer (CHT) in microscale systems across all flow regimes ...
Yunlong Ge +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Controlling the Field Assisted Sintering Technology (FAST) parameters, dwell temperature and cooling rate, significantly influences the microstructural evolution in titanium aluminide GE4822. Significant γ‐lamellar colonies develop only upon cooling through the α‐transus.
Jack Krohn, James Pepper, Martin Jackson
wiley +1 more source
Treatments of flows through micro-channels based on the Extended Navier-Stokes-Equations [PDF]
, 2011 This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Sambasivam, R +5 more
core
A continuum model of gas flows with localized density variations [PDF]
, 2008 We discuss the kinetic representation of gases and the derivation of macroscopic equations governing the thermomechanical behavior of a dilute gas viewed at the macroscopic level as a continuous medium.
Reese, Jason M. +7 more
core +1 more source
The Study of Transition Flow of Rarefied Gas
Chemical engineering, 1970 従来, 気体の遷移域における流動式は, 層流, 分子流の和の形としてよく用いられている。この研究はそれらの流動式が流相を明確に表わしていないので, 流相の明確な流動式を求めたものである。そしてその流動式に含まれる遷移流因子ともいうべきものが, Kn数の逆数と如何なる関係にあるかを実験的に求めた。結論として我々の求めた流動式は層流から分子流にいたる全範囲において気体の流動をよく表わすものと思われる。
Iuchi, Satoru, Kanki, Tatsuo
openaire +1 more source