Which of the following is a dimensionless parameter?
The correct answer is option (3) Kinematic viscosity. A dimensionless quantity means the quantity that can be represented by M°L°T°.
Which dimensionless number classifies the flow into different compressible regimes?
The Reynolds number is commonly used to characterize if a flow in a pipe is laminar or turbulent. The flow is generally assumed to be laminar when Re < 2,100, and turbulent when Re > 4,000. The flow is referred to as transition flow when the Reynolds number is between 2,100 and 4,000.
How do you know if a flow is compressible?
For an air temperature of 20°C, the speed of sound is approximately 340 m/s. Therefore, if the fluid velocity is 100 m/s or greater, compressibility should be considered in the calculations. For fluid velocities less than 100 m/s, the fluid can be considered incompressible./span>
What is difference between compressible and incompressible flow?
The main difference between compressible and incompressible fluid is that a force applied to a compressible fluid changes the density of a fluid whereas a force applied to an incompressible fluid does not change the density to a considerable degree./span>
Why ideal fluid is incompressible?
In an ideal fluid, by definition we ASSUME that inter-electronic attraction forces b/w the particles of individual water molecules are NON EXSISTANT. Since there are no inter-electronic forces that can attract the molecules and decrease the volume of the fluid , so it is incompressible.
What is a one dimensional flow?
Example: the flow in a pipe is considered one-dimensional when variations of pressure and velocity occur along the length of the pipe, but any variation over the cross-section is assumed negligible.
What is flow and types of flow?
Fluid flow is generally broken down into two different types of flows, laminar flow and turbulent flow. Laminar flow is fluid motion in which all the particles in the fluid are moving in a straight line. Turbulent flow is an irregular flow of particles; characterized by whirlpool-like regions.
What is meant by 2 dimensional flow?
Fluid motion can be said to be a two-dimensional flow when the flow velocity at every point is parallel to a fixed plane. The velocity at any point on a given normal to that fixed plane should be constant.
What is 3d flow?
Term one, two or three dimensional flow refers to the number of space coordinated required to describe a flow. It appears that any physical flow is generally three-dimensional. But these are difficult to calculate and call for as much simplification as possible.
What is rotational flow?
[rō′tā·shən·əl ′flō] (fluid mechanics) Flow of a fluid in which the curl of the fluid velocity is not zero, so that each minute particle of fluid rotates about its own axis. Also known as rotational motion.
What are streamlines?
A streamline is a line that is tangential to the instantaneous velocity direction (velocity is a vector, and it has a magnitude and a direction). To visualize this in a flow, we could imagine the motion of a small marked element of fluid.
Why are streamlines important?
A streamline is the closest position a swimmer can achieve that’s similar to a fish, dolphin, or whale. This position has the LEAST amount of drag associated with it, and also clocks in some of the swimmer’s HIGHEST speeds. That is why we use a streamline to keep the speed up for as long as we can./span>
What is a streamlined process?
A streamlined process means fewer errors and delays. You probably use dozens of business processes every day. For example, you may go through the same steps each time you generate a report, resolve a customer complaint, contact a new client, or manufacture a new product.
What is an example of streamlining?
Streamline means to design something in a way that provides little resistance such as from air, water or quick movement. When you design an ultra-slick air craft with almost no wind resistance, this is an example of when you streamline.
What is streamlined communication?
What is Streamlined Communication? Streamlined communication means you are not only giving infinite ways to interact with your staff, partners and customers, but also building an effective relationship with each of them.
What are the six steps in continuous process improvement?
It’s is a six-step systematic approach to plan, sequence and implement improvement efforts using data and elaborates on the Shewhart Cycle (Act, Plan, Do, Study)….Plan for the Future:
- Benchmarking.
- Force Field Analysis.
- Flowcharts.
- Affinity Diagram.
- Delphi Technique.
- Pareto Chart.
- Cause and Effect Diagram.
- Scatter Diagram.
What are the 4 steps of a continuous improvement quality life cycle?
The basis of the PDCA cycle is a four-part quality lifecycle. And these actually constitute the Acronym of the PDCA cycle: Plan, Do, Check and Act. This cycle may be used to improve, for example, an online ordering service or the Service Level Management process within an organization.
What is PDCA life cycle?
Key Points. The PDCA/PDSA cycle is a continuous loop of planning, doing, checking (or studying), and acting. It provides a simple and effective approach for solving problems and managing change. The model is useful for testing improvement measures on a small scale before updating procedures and working practices.
How do you identify opportunities for improvement?
Identify the need for change: A useful way to discover improvement opportunities is by conducting a process audit. The audit will identify current issues or potential risks for your company. From the audit report you will be able to prioritize your areas for business improvement.