Fluids and Flow Regime

Mr-CFD offers a complete range of CFD analysis, consulting services and training in fluid mechanics

Fluid mechanics and flow regime

Fluid mechanics deals with the different flow regime and fluids. Its study is important to physicists, whose main interest is in understanding phenomena. The study of fluid mechanics is just as important to engineers. Their main interest is in the applications of fluid mechanics to solve industrial problems.

Aerospace engineers may be interested in designing airplanes that have low resistance and at the same time, high “lift” force to support the weight of the plane. Civil engineers may be interested in designing irrigation canals, dams, and water supply systems. Pollution control engineers may be interested in saving our planet from the constant dumping of industrial sewage into the atmosphere and the ocean. Mechanical engineers may be interested in designing turbines, heat exchangers, and fluid couplings. Chemical engineers may be interested in designing efficient devices to mix industrial chemicals.

The objectives of physicists and engineers, however, are not quite separable because the engineers need to understand and the physicists need to have motivation through applications. Fluid mechanics, like the study of any other branch of science, needs mathematical analysis, experimentation and computational simulations.

When you think about fluids application, almost everything on this planet either is a fluid or moves within or near a fluid. For instance, to name a few of enormous applications: breathing, blood flow, swimming, pumps, fans, turbines, airplanes, ships, rivers, windmills, pipes, missiles, icebergs, engines, filters, jets, and sprinklers, etc.

Fluids and flows regime can be classified in different groups

Ideal fluids versus real fluids

Ideal fluids are those incompressible fluids without viscosity, while real fluids which exist in nature are incompressible with viscosity.

Newtonian versus non-Newtonian fluids

A fluid which has a linear relationship between shear stress and velocity gradient is called Newtonian fluid and on the other hand when this relationship is not linear the flow is called non-Newtonian.

One, two, and three-dimensional flows

Velocity distribution defines that the flow is one, two or three dimensional depending on whether velocity variations is in one, two or three dimensions.

Viscous versus inviscid flows

The areas in flow field which the viscosity is dominant (near walls) the flow is viscous. In some region of flows we can neglect the effects of viscosity in comparison to other forces; in these regions, the fluid flows is considered inviscid.

Internal versus external flow

Internal flows are flows forced to move through confined channels, while flows over surfaces are external flows.

Laminar versus turbulent flow

Flows in which the fluid viscosity is important can be of two types, namely, laminar and turbulent. If the fluid is moving in parallel layers the flow is called laminar and if the flow is moving randomly the flow is turbulent. By computing Reynolds number we can predict whether the flow is laminar or turbulent.

Steady versus unsteady flow

In steady flows, there is not any property which varies with time. And if the flow is not steady and we have variations in time the flow is unsteady.

Incompressible and compressible flows

If density is changed during fluid flow, flow is compressible. Mach number is a non-dimensional number that can predict id the flow is compressible. The density of liquids are considered constant; therefore, we can treat liquid flows as incompressible flows in most applications.

Mr CFD Company services

Due to the wide range of mechanical science and the different fields of work as well as the abundance of projects, this company offers to view all the products presented in this section. In the absence of any desired project or project close to your request, you can search our portfolios in order to find your eligible project, after all, if you didn’t find any ideal project you can order your project from the services pages on the header of this website. Your order will be reviewed by our experts in the shortest possible time, and if we need more information about the proposed project, we will be in touch with you. After completing the required information to examine the proposed project, and confirming your request, the time, conditions and costs will be sent to you during the contract. This process will take place as soon as possible. If you have any question, you can contact to our online support section (the fixed blue tab below the page). If it is offline, don’t worry, you can post your message, and it will be answered as soon as possible.

Portfolios

These are our latest successful projects.

Al2O3 Nano-fluid Heat Transfer In A Single-tube Heat Ex-changer With A Spiral Strip
Al2O3 Nano-fluid heat transfer in a single-tube heat ex-changer with a spiral strip
Aerospace, Chemical, Free Surface Flows (Multiphase), Heat Transfer, Mechanical, Renewable

Al2O3 Nano-fluid heat transfer in a single-tube heat ex-changer with a spiral strip

Al2O3 Nano-fluid heat transfer in a single-tube heat ex-changer with a spiral strip, simulated by ANSYS Fluent The transfer of…

CFD Simulation Of Heat Transfer In A Rectangular Zigzag Channel With Different Angles Using ANSYS Fluent Software
CFD simulation of Heat transfer in a rectangular zigzag channel with different angles using ANSYS Fluent software
Aerospace, Heat Transfer, Mechanical

CFD simulation of Heat transfer in a rectangular zigzag channel with different angles using ANSYS Fluent software

CFD simulation of Heat transfer in a rectangular zigzag channel with different angles using ANSYS Fluent software In this project,…

Simulation Of Surface Evaporation Flow In A Two-dimensional Solar Still Water
Simulation of surface evaporation flow in a two-dimensional solar still water
Aerospace, Chemical, Free Surface Flows (Multiphase), Heat Transfer, Mechanical, Renewable

Simulation of surface evaporation flow in a two-dimensional solar still water

Simulation of surface evaporation flow in a two-dimensional solar still water The main mechanism used in sweeteners is, in general,…

Transient CFD Simulation Of A 3–blade Axial Fan Using Mesh Motion
Transient CFD simulation of a 3–blade axial fan using mesh motion
Aerospace, Aerospace, Mechanical, Single-Phase, Non-Reacting Flows, Turbomachinery

Transient CFD simulation of a 3–blade axial fan using mesh motion

Fans almost have been used for air conditioning, ventilation of closed volumes, or heat transfer for industrial goals. Nowadays, airflow…

Cooling CFD Simulation Of Heatsink On IGBT By ANSYS Fluent
Cooling CFD simulation of heatsink on IGBT by ANSYS Fluent
Heat Transfer, Mechanical, Single-Phase, Non-Reacting Flows

Cooling CFD simulation of heatsink on IGBT by ANSYS Fluent

Fans almost have been used for air conditioning, ventilation of closed volumes, or heat transfer for industrial goals. Nowadays, airflow…

Simulation Of Air Inside A Turbojet
Simulation of air inside a turbojet
Heat Transfer, Mechanical, Turbomachinery

Simulation of air inside a turbojet

A turbo engine is a jet engine in which all of the air emitted into the combustion chamber is passed,…

Our Process

If you want to know what we will do with your project read our steps blow.

STEP 1

Please send the details of your project through the link below.

STEP 2

Our colleagues will call you as soon as possible; then after advising you on your project, we will specify the steps of the project in detail, the fee and the delivery time for each step.

STEP 3

After paying the deposit, we will start your project and the results of each step will be sent to you in the specified deadlines. Once you have investigated your results and confirmed it, the fee of that step should be paid.

STEP 4

All of the results and files related to simulations will be sent to you and you will receive the required training.

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