Results 81 to 90 of about 695,317 (311)

Transition to turbulence in laminar hypersonic flow [PDF]

open access: yes
Progress in a recently started project aimed at the prediction of transition to turbulence in hypersonic flow is briefly discussed. The prediction of transition to turbulence is a very important issue in the design of space vessels.
Vandervegt, Jaap
core   +1 more source

Enthalpy and stagnation temperature determination of a high temperature laminar flow gas stream Patent [PDF]

open access: yes, 1965
Measuring conductive heat flow and thermal conductivity of laminar gas stream in cylindrical plug to simulate atmospheric ...
Glawe, G. E.   +2 more
core   +1 more source

The general circulation of the atmosphere [PDF]

open access: yes, 2006
Theories of how Earth's surface climate may change in the future, of how it may have been in the past, and of how it is related to climates of other planets must build upon a theory of the general circulation of the atmosphere.
Schneider, Tapio
core   +1 more source

Multiphase Flows in the Atmosphere

open access: yesJAPANESE JOURNAL OF MULTIPHASE FLOW, 1991
Phase change of water vapour in the atmosphere produces small water particles in the atmosphere. They are usually suspended quite densely in limited space and are called clouds. When the air temperature falls below -20°C, they are replaced by ice particles.
openaire   +2 more sources

Enabling Digital Continuity in Virtual Manufacturing for Eco‐Efficiency Assessment of Lightweight Structures by Means of a Domain‐Specific Structural Mechanics Language: Requirements, Idea and Proof of Concept

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a solver‐agnostic domain‐specific language (DSL) for computational structural mechanics that strengthens interoperability in virtual product development. Using a hierarchical data model, the DSL enables seamless exchange between diverse simulation tools and numerical methods.
Martin Rädel   +3 more
wiley   +1 more source

Orography‐Induced Atmospheric Small‐Scale Waves During Bora Using Lidar Observations and Numerical Simulations

open access: yesGeophysical Research Letters
Atmospheric flow of cold air over mountain barriers in the Alpine region often gives a rise to strong and gusty downslope wind, Bora. Such flows are often accompanied by atmospheric waves, generated by the flow passing an elevated barrier.
Longlong Wang   +5 more
doaj   +1 more source

A vapor generator for transonic flow visualization [PDF]

open access: yes
A vapor generator was developed for use in the NASA Langley Transonic Dynamics Tunnel (TDT). Propylene glycol was used as the vapor material. The vapor generator system was evaluated in a laboratory setting and then used in the TDT as part of a laser ...
Bruce, Robert A.   +2 more
core   +1 more source

Unsteady flow phenomena in industrial centrifugal compressor stage [PDF]

open access: yes, 1982
The results of an experimental investigation on a typical centrifugal compressor stage running on an atmospheric pressure test rig are shown. Unsteady flow was invariably observed at low flow well before surge.
Bonciani, L., Terrinoni, L., Tesei, A.
core   +1 more source

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh   +6 more
wiley   +1 more source

Generalised Lagrangian Solutions for Atmospheric and Oceanic Flows

open access: yesSIAM Journal on Applied Mathematics, 1991
Summary: Atmospheric or oceanic flows strongly constrained by rotation and stratification can be described by a set of Lagrangian partial differential equations called the semigeostrophic equations. In these equations the trajectories must be determined implicitly.
Cullen, M, Norbury, J, Purser, R
openaire   +2 more sources

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