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Fluids mechanics is very important chapter in机械工业课程和工程物理学研究。与其他主题相比，流体力学下的问题非常严格和复杂。流体力学问题需要更多地专注于所有基本概念和理论。大多数学生都遇到了流体机制问​​题，他们需要一个专家或导师，他们可以轻松地为他们提供便利。我们在Expertsmind.com为学生提供有关流体力学工程或机械工程课程的学生解决方案的工作。我们在Expertsmind.comoffer fluids mechanics assignment help, fluids mechanics homework help and机械工业projects assistance with best online support for 24*7 hours. The students can take help anytime from anywhere just once click on Expertsmind.com. Get fluids mechanics and related questions answers from live online qualified and experienced experts orengineering负担得起的价格报价的导师。

Fluids Mechanics

对流体及其作用的力的研究称为流体力学。流体可以是气体，液体甚至血浆。流体力学的研究分为

1. Fluid statistics- the study of fluids at rest.

2.流体运动学 - 运动中的流体研究，

3.流体动力学 - 它包括力对流体运动的影响。

基于流体动力学的建模问题on macroscopic viewpoint, rather than a microscopic viewpoint and the subject does the matter modeling without using the information that the matter is made up of atoms. The fluid mechanics discipline can be said to be an active field of research which has many unsolved and partly solved problems to its credit. The subject can also be very mathematically complex. Many a times, numerical methods are used by using a computer for solving the problems. For solving fluid mechanics problem of higher complexity, computational fluid dynamics is used, which is relatively very modern discipline of study. The particle image velocimetry takes the advantage of the highly visual nature of fluid flow and visualizes and analyzises fluid flow experimentally.

一个简短的历史

流体动力学的主题诞生于古希腊时代，当时著名的科学家阿基米德（Archimedes）调查了流体统计概念并给出了浮力定律，这也被称为阿基米德原理。与流体力学和动力学相关的其他一些伟大名称是Isaac Newton（粘度概念），Leonardo da Vinci（实验和观察），Blaise Pascal（Hydro Statistics）和Evangelista Torrilli（气压计的发明）。后来，丹尼尔·伯诺利（Daniel Bernoulli）在1738年的《流体动力学》中引入了数学流动动力学。探索粘性流量的工程师是Heinrich Ludwig Hagen和Poiseuilee。Navier Strokes方程提供了数学上的理由，由George Gabriel Strokes和Claude Louis Navier给出。边界层的调查是由Theodore对Karman和Ludwig Prandt进行的。其他一些有助于理解流体粘度的科学家是Andrei Kolmogorov，Osborne Reynolds和Geoffrey Ingram Taylor。

流体力学及其与连续力学的关系

Fluid mechanics can also be considered a sub discipline of continuum mechanics, which is the study of physics of the continuous materials. The other branch of continuum mechanics is solid mechanics, which is the study of physics of continuous materials which have a defined rest shape. These are further divided into elasticity, plasticity and theology along with the division of Newtonian and non Newtonian fluid.

The Assumptions in fluid mechanics

像所有涉及现实世界的数学模型一样，流体力学也对所研究的材料做出了一些基本假设。为了使这些假设是真实的，应将它们变成令人满意的方程式。我们可以将其视为一个尺寸的不可压缩流体为例。为了假设质量是保守的，因此表面内部的质量传递形式必须与质量速率相同，该质量速率在任何闭合和固定表面上沿相反方向传递。这也意味着系统的外部和内部边界内的质量保持恒定。流体力学学科认为，流体遵守这些法律 -

1. Conservation of mass

2. Conservation of momentum

3. Conservation of energy

4. The continuum hypothesis

The fluid is also assumed incompressible, which means that the density of fluid does not change.

The continuum hypotheses

尽管流体是由彼此持续碰撞并与出售物体持续碰撞的分子组成的，但连续性假设认为流体是连续的。因此，在无限小点上，流体的特性（例如温度，压力，粘度等）被认为是捍卫的。它忽略了流体是由离散分子制成的事实。它还假设属性正在连续移动一个点到另一点，并且它们还形成了Rev中包含的平均值。连续假设的假设与天体力学主题中的点粒子的近似值相同，这两者都提供了近似的溶液。

Newtonian and non Newtonian fluids

在垂直于剪切平面的方向的速度梯度线性比例中具有剪切应力的流体被称为牛顿流体。因此，无论流动方向如何，流体流动。相比之下，非牛顿流体留下了一个洞。