Results 41 to 50 of about 25,025 (293)

Dissipative mass flux and sound wave propagations in monatomic gases [PDF]

open access: yes, 2011
Predicting sound wave dispersion in monatomic gases is a fundamental gas flow problem in rarefied gas dynamics. The Navier-Stokes-Fourier model is known to fail where local thermodynamic equilibrium breaks down.
Dadzie, Kokou, Reese, Jason
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Data-driven nonlinear constitutive relations for rarefied flow computations

open access: yesAdvances in Aerodynamics, 2021
To overcome the defects of traditional rarefied numerical methods such as the Direct Simulation Monte Carlo (DSMC) method and unified Boltzmann equation schemes and extend the covering range of macroscopic equations in high Knudsen number flows, data ...
Wenwen Zhao   +3 more
doaj   +1 more source

The Boltzmann equation in special and general relativity

open access: yes, 2012
Relativistic field equations for a gas in special and general relativity are determined from the Boltzmann equation. The constitutive equations are obtained from the Chapman-Enskog methodology applied to a relativistic model equation proposed by Anderson
Kremer, Gilberto M.
core   +1 more source

Non-equilibrium theories of rarefied gases: internal variables and extended thermodynamics [PDF]

open access: yes, 2020
Limits of classical constitutive laws such as Fourier and Navier-Stokes equations are discovered since decades. However, the proper extensions -- generalizations of these are not unique.
Kovács, Róbert   +3 more
core   +2 more sources

DSMC–LBM mapping scheme for rarefied and non-rarefied gas flows [PDF]

open access: yesJournal of Computational Science, 2016
We present the formulation of a kinetic mapping scheme between the Direct Simulation Monte Carlo (DSMC) and the Lattice Boltzmann Method (LBM) which is at the basis of the hybrid model used to couple the two methods in view of efficiently and accurately simulate isothermal flows characterized by variable rarefaction effects. Owing to the kinetic nature
Di Staso G   +3 more
openaire   +4 more sources

Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

open access: yesMolecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni   +11 more
wiley   +1 more source

Effect of viscosity on slip boundary conditions in rarefied gas flows

open access: yesVietnam Journal of Mechanics, 2019
The viscosity of gases plays an important role in the kinetic theory of gases and in the continuum-fluid modeling of the rarefied gas flows. In this paper we investigate the effect of the gas viscosity on the surface properties as surface gas ...
Nam T. P. Le
doaj   +1 more source

Aerodynamic optimization of NACA 0012 airfoils with attached Gurney flap in the rarefied gas flow

open access: yesAIP Advances, 2023
The aerodynamic optimization of a Gurney flap attached to the NACA 0012 airfoil in rarefied gas flow is studied in this study. In order to investigate the effects of Gurney flap geometry (height, mounting angle, and mounting location) and angle of attack
Keren Lin   +4 more
doaj   +1 more source

Multiscale lattice Boltzmann approach to modeling gas flows [PDF]

open access: yes, 2010
For multiscale gas flows, kinetic-continuum hybrid method is usually used to balance the computational accuracy and efficiency. However, the kinetic-continuum coupling is not straightforward since the coupled methods are based on different theoretical ...
E. F. TORO   +6 more
core   +2 more sources

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