Results 31 to 40 of about 30,675 (301)
Aerodynamic optimization of NACA 0012 airfoils with attached Gurney flap in the rarefied gas flow
AIP 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
Highly underexpanded rarefied jet flows
Frontiers in Mechanical Engineering, 2023 A highly underexpanded jet outflow into the background in transition and scattering regimes is studied computationally. The direct simulation Monte Carlo method and Navier–Stokes equations are used. The main parameters’ impact on the jet flow is analyzed.
N. Y. Bykov +4 more
openaire +2 more sources
Simulating fluid flows in micro and nano devices : the challenge of non-equilibrium behaviour [PDF]
, 2009 We review some recent developments in the modelling of non-equilibrium (rarefied) gas flows at the micro- and nano-scale, concentrating on two different but promising approaches: extended hydrodynamic models, and lattice Boltzmann methods.
Reese, Jason M., Zhang, Yonghao
core +1 more source
Rarefied gas flow through a slit.
SHINKU, 1990 A rarefied gas flow through a slit in an infinite plane wall, induced by a small pressure difference across the slit, is studied on the basis of the kinetic theory. The system of integral equations for the macroscopic variables (the velocity, density, and temperature of the gas), derived from the linearized Boltzmann–Krook–Welander equation with the ...
Hasegawa, Manabu, Sone, Yoshio
openaire +3 more sources
Rarefied gas dynamics and its applications to vacuum technology [PDF]
, 2007 Basic concepts of rarefied gas dynamics are given in a concise form. Some problems of rarefied gas flows are considered, namely, calculations of velocity slip and temperature jump coefficients, gas flow through a tube due to pressure and temperature ...
Sharipov, F
core +1 more source
Optical Diagnostics in Rarefied Flows
Chinese Journal of Aeronautics, 2000 AbstractThis article reviews the instrumental developments accomplished at ONERA in order to perform precise non-intrusive measurements of hypersonic flows using laser- and electron-beam-based optical techniques. Point line of sight and imaging measurements are possible.
openaire +1 more source
Energies, 2023 In this study, we first considered the influence of micro-nozzle wall roughness structure on molecular collision and reflection behavior and established a modified CLL model.
Xuhui Liu +4 more
doaj +1 more source
Clinical Insights Into Hypercalcemia of Malignancy in Childhood
Pediatric Blood &Cancer, EarlyView.ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley +1 more source
On the Rarefied Thermally-Driven Flows in Cavities and Bends
Fluids, 2022 This study examined rarefied thermally-driven flow in a square cavity (Case 1) and rectangular bend (Case 2), with various uniform wall temperatures in two dimensions.
Mostafa Mousivand, Ehsan Roohi
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Objective To evaluate selumetinib exposure using therapeutic drug monitoring (TDM) in pediatric patients with neurofibromatosis type 1 (NF1) and plexiform neurofibromas (PN), assess interpatient pharmacokinetic variability, and explore the relationship between drug exposure, clinical response, and adverse effects.
Janka Kovács +8 more
wiley +1 more source