Results 41 to 50 of about 6,706 (262)

A minicourse on the low Mach number limit

Discrete and Continuous Dynamical Systems - S, 2008
These lectures are devoted to the study of the low Mach number limit for classical solutions of the compressible Navier-Stokes or Euler equations for non-isentropic fluids. We study the general case where the combined effects of large temperature variations and thermal conduction are taken into account.
openaire   +1 more source

Influence of flow parameters on cavity-tone control using a rear-wall protrusion [PDF]

AIP Advances
This study investigated the effects of flow parameters on cavity-tone suppression using a rear-wall protrusion, which is a passive control device previously optimized for low-Mach-number conditions. Three key nondimensional parameters were systematically
Kazuya Kusano
doaj   +1 more source

Quasi 3D Nacelle Design to Simulate Crosswind Flows: Merits and Challenges

International Journal of Turbomachinery, Propulsion and Power, 2019
This paper studies the computational modelling of the flow separation over the engine nacelle lips under the off-design condition of significant crosswind.
Alex Yeung, Nagabhushana Rao Vadlamani, Tom Hynes, Sumit Sarvankar   +3 more
doaj   +1 more source

Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application

Advanced Engineering Materials, EarlyView.
N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang, Mayur Pole, Tingkun Liu, Kenneth A. Ross, Christopher B. Smith   +4 more
wiley   +1 more source

Research on the Aerodynamic–Propulsion Coupling Characteristics of a Distributed Propulsion System

Applied Sciences
In recent years, the distributed propulsion system has received extensive attention due to its advantages such as high propulsion efficiency, low noise, high safety redundancy, and good flexibility and maneuverability.
Xiaojun Yang, Tao Liu, Wei Jia
doaj   +1 more source

Low-mach number effects and late-time treatment of Richtmyer-Meshkov and Rayleigh-Taylor instabilities [PDF]

, 2011
The Richtmyer-Meshkov instability appears when the mixing between two fluids is triggered by the passage of a shock wave. It occurs in a range of different applications, such as astrophysics, inertial confinement fusion and supersonic combustion.
Oggian, Tommaso
core  

Microsphere‐Templated Conductive Syntactic Foams for Recyclable and Additively Manufactured Soft Electronics

Advanced Healthcare Materials, EarlyView.
This work introduces a microsphere‐templated strategy to fabricate reprocessable PEDOT:PSS syntactic foams with tunable porosity, stable conductivity, and 3D printability. In situ PEDOT:PSS coatings create a conductive network that maintains electrical performance at high void fractions.
Gayaneh Petrossian, Yassine Diouri, Bolan Xu, Sara Ebrahimi, Atharva Pande, Floriane Miquet‐Westphal, Hang Xu, Fabio Cicoira   +7 more
wiley   +1 more source

The Active Flux Scheme on Cartesian Grids and Its Low Mach Number Limit [PDF]

Journal of Scientific Computing, 2019
Finite volume schemes for hyperbolic conservation laws require a numerical intercell flux. In one spatial dimension the numerical flux can be successfully obtained by solving (exactly or approximately) Riemann problems that are introduced at cell interfaces. This is more challenging in multiple spatial dimensions.
Wasilij Barsukow, Jonathan Hohm, Christian Klingenberg, Philip L. Roe   +3 more
openaire   +2 more sources

Lattice ellipsoidal statistical BGK model for thermal non-equilibrium flows [PDF]

, 2012
A thermal lattice Boltzmann model is constructed on the basis of the ellipsoidal statistical Bhatnagar-Gross-Krook (ES-BGK) collision operator via the Hermite moment representation.
Nicolas G. Hadjiconstantinou, Radtke, Gregg A., Jianping Meng, Zhang, Yonghao, Meng, Jianping, Meng, Jian-Ping, Shan, Xiaowen, Gregg A. Radtke, Hadjiconstantinou, Nicolas, Yonghao Zhang, Radtke, G.A., Xiaowen Shan   +11 more
core   +1 more source

Dexime: A Selectively Enzyme‐Degradable Hydrogel for Protein Therapeutic Release

Advanced Materials, EarlyView.
A dextrin‐oxime hydrogel (dexime) is produced using ketone or aldehyde modified dextrin and tetra‐oxyamine modified poly(ethylene glycol). The rheological and mechanical properties of dexime are tunable. Dexime is injectable, cytocompatible, hydrolytically stable, and selectively degradable by α‐amylase.
Quinton E. A. Sirianni, Nitzan Letko Khait, Adam Forman, Edward A. Armstrong, Karim Fouad, Molly S. Shoichet   +5 more
wiley   +1 more source