Would you prefer turbulent flow or laminar flow around a racing bicycle which would you like for white water rafting?
4) a) Around a racing bike you would prefer LAMINAR FLOW. This is because you want to have little resistance or DRAG in order to increase your speed and win races.
Which flow is better laminar or turbulent?
Turbulent flow is a flow regime characterized by chaotic property changes. This includes rapid variation of pressure and flow velocity in space and time. In contrast to laminar flow the fluid no longer travels in layers and mixing across the tube is highly efficient.
Would you prefer turbulent flow or laminar flow in your blood vessels explain?
Generally in the body, blood flow is laminar. However, under conditions of high flow, particularly in the ascending aorta, laminar flow can be disrupted and become turbulent. Therefore, high velocities and low blood viscosity (as occurs with anemia due to reduced hematocrit) are more likely to cause turbulence.
Is laminar or turbulent flow better for heat exchanger?
The study of heat transfer can be done either in laminar flow or in turbulent flow. Under turbulent flow conditions, the increase in heat transfer rate is more significant than that under laminar flow conditions. This is due to the increase in the Reynolds number of the flowing fluid in turbulent flow.
What is an object that fluids flow over smoothly with little turbulence?
Laminar flow is characterized by smooth flow of the fluid in layers that do not mix. Turbulence is characterized by eddies and swirls that mix layers of fluid together.
Is the study of how fluids act when they are moving?
Fluid mechanics is the study of the behaviour of fluids when they are moving and when they are not moving. called aerodynamics; the study of liquids in motion is called hydrodynamics.
What is a disadvantage of turbulent flow?
A turbulent flow increases the amount of air resistance and noise; however, a turbulent flow also accelerates heat conduction and thermal mixing.
What is a disadvantage of laminar flow?
Vertical laminar flow hoods have some potential disadvantages as well. Notably, placing your hands, materials or equipment on top of other items obstructs the airflow and creates turbulence which reduces their ability to remove particles, leading to a greater risk for contaminating your work.
Why is turbulent blood flow bad?
Risk factors that increase turbulence, such as plaque build-up or hardening of the arterial walls, serve to increase vascular resistance (sometimes referred to as SVR or systemic vascular resistance) and result in increased blood pressure, reduced blood flow, and an increased workload for the heart.
Why is turbulent flow bad?
A turbulent flow increases the amount of air resistance and noise; however, a turbulent flow also accelerates heat conduction and thermal mixing. Therefore, understanding, handling, and controlling turbulent flows can be crucial for successful product design.
What is an disadvantage of turbulent flow?
Turbulent flow increases the rate of convective heat transfer in most, if not all, situations. Thus, to accelerate the cooling of an object, it is best to maximize turbulent flow over the object. One disadvantage of turbulent flow is that it is detrimental to lift on aeronautical devices.
Does increasing flow increase heat transfer?
In other words, the rate of heat transfer is directly proportional to mass flow rate. If you increase the flow rate, you will then increase the rate of heat transfer.
Why does a sailboat sail farther from the wind?
As a sailboat sails further from the wind, the apparent wind becomes smaller and the lateral component becomes less; boat speed is highest on the beam reach. In order to act like an airfoil, the sail on a sailboat is sheeted further out as the course is further off the wind.
What did the improvements in sailing allow for?
There were improvements in sails, masts and rigging; improvements in marine navigation, including the cross tree and charts of both the sea and constellations, allowed more certainty in sea travel.
How to determine the final velocity of the rod along the track?
The rod is positioned at 45 degrees to the track, and a ball of mass 1kg travelling at 15 m/sec strikes the rod at 0.5m from the rod’s center. Collision is perfectly elastic, friction is zero. How can I determine the final velocity of the rod along the track, and what is it’s rotational speed?