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流体力学

68 件の記事

Air bubbles rising from a scuba diver in water

気泡（バブル）の科学日常の現象から高度な産業応用まで

気泡バブル物理学屈折率
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The forces at work in buoyancy. The object floats at rest because the upward force of buoyancy is equal to the downward force of gravity.

浮力（Buoyancy）の仕組みとアルキメデスの原理物体が浮く理由を科学的に解説

浮力アルキメデスの原理流体力学密度
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重力流（密度流）のメカニズムと自然界・建築環境への影響

重力流密度流流体力学ブシネスク近似
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Computer generated animation of fluid in a tube flowing past a cylinder, showing the shedding of a series of vortices in the flow behind it, called a von Kármán vortex street. The streamlines show the direction of the fluid flow, and the color gradient shows the pressure at each point, from blue to green, yellow, and red indicating increasing pressure

流体力学の基礎と応用流体の挙動を解き明かす科学

流体力学ナビエ・ストークス方程式レイノルズ数層流
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Sketch of multiphase flow in an oil pipe, where the continuous phase is the liquid (blue) carrying smaller particles. Gas (white) and oil particles (black) are in a disperse phase.

多相流のメカニズムと産業応用流体力学の視点から

多相流流体力学二相流流動様式
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The hulls of swan (above) and raven (below). A sequence of 3, 6, and 12 (shown in the picture) foot scale models were constructed by Froude and used in towing trials to establish resistance and scaling laws.

フルード数（Froude number）の基礎から応用まで流体力学と生物学を繋ぐ無次元数

フルード数流体力学無次元数造船工学
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Linear structure of cellulose — the most common component of all organic plant life on Earth. * Note the evidence of hydrogen bonding which increases the viscosity at any temperature and pressure. This is an effect similar to that of polymer crosslinking, but less pronounced.

レオロジーとは？物質の流動と変形を解き明かす科学

レオロジー非ニュートン流体粘弾性粘度
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Simulation of thermal convection in the Earth's mantle. Hot areas are shown in red, cold areas are shown in blue. A hot, less-dense material at the bottom moves upwards, and likewise, cold material from the top moves downwards.

対流のメカニズムと自然界への影響熱輸送の科学

対流熱伝達流体力学自然対流
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