Exporting droplet/particle statistics within the domain
|Currently, there is no simple way of determining important spray statistics such as mass flux, size distributions, characteristic sizes (e.g., Sauter Mean Diameter), or size/velocity correlations....|
Cases with Porous Zones & Energy equation yield unreasonable temperature distribution
|Users have reported unreasonable temperature distributions in cases where
-porous fluid zones are present
-heat exchanger model is used
The symptoms which are reported are
FLUENT 6.1: How to avoid non-physical low/high temperatures near shell conduction zones
For some cases, turning on the planar-conduction model results in unphysical temperatures
at cells near several planar conduction zones. At those cells, the temperature hits
the specified upper...
Best practices for using segregated solver with compressible flow
|In the AER team's experience, the following works well for compressible flows when using the segregated solver:
1) Initialize the flow to be near stagnation (velocity small but not zero,...
Conjugate Heat Transfer showing temperature limitation messages:
|With conjugate heat transfer problem, the temperature often hits the upper and/or lower limits.
For such cases, disabling the secondary temperature gradient calculation resolves the problem. This...
Improving solution for heat transfer with tetrahedral mesh
|The solution accuracy for heat transfer prediction for laminar flow in channels with full tetrahedral mesh can be lower compared to a full hexahedral mesh. This is true even when the second order...|
How to find Heat Exchanger NTU?
|The heat exchanger (HXC) raw performance data is usually provided by the vendor that manufactures HXC. The raw data consists of total heat rejection (q) for varying air mass flow rates and for a...|
defining heat transfer coefficient (HTC) in FLUENT
|The heat transfer coefficient is a characteristic of the flow. It is used to
measure the ability of a flow to convect energy from walls. HTC=
For forced convection flows, HTC...
In the energy equation, when Viscous heating is turned on, Pressure work must also be turned on.
|Consider flow through a capillary ID 1 mm, Length 20 mm, adiabatic wall and inlet velocity 0.02 m/s, 300 K
Fluid: m = 0.8 Pa.s, r = 600 kg/m3, k = 0.1 W/(mK), Cp = 2600 J/(kgK)
Therefore, Re =...
How do I solve two Ordinary Differential equations using Matlab?
|In the Matlab editor write the following code:
function yp = programs(t,y)
Save this file as programs.m
How do I Enable or Disable Cookies?
|Microsoft Internet Explorer 8.0 or 9.0
Select the 'Tools->Internet Options' menu item, and then open the 'Privacy' tab - you can then adjust the slider to block or allow...
How do I print screen?
|You can take a picture of what is on your screen by pressing PRINT SCREEN (PRTSC or PRTSCN on some keyboards). This is called a screen capture. You can then paste the screen capture into a...|
How do bees make honey?
|Honey bees collect pollen and nectar in the spring when most flowers and plants are in bloom. They use their long, tubelike tongues like straws (called proboscis) to suck the nectar out of the...|
What do tadpoles eat?
|Tadpoles eat a wide variety of things. It ranges from species to species. In the wild most tadpoles will eat micro plants and algae. Some species are omnivores and eat organic debris from...|
What do frogs eat?
|Frogs are carnivores and eat live prey such as insects, snails, spiders, worms and small fish. Some of the bigger species of frogs will even eat small mammals like rats and small reptiles like...|
Why do cats purr?
|Many cat owners enjoy the soothing sounds of purrs that omit from their beloved pet. However, many cat lovers do not know exactly the answer to this question, “why do cats purr?”...|
What Is A Fossil?
|A fossil is the remains or evidence of any creature or plant that once lived on the Earth.
They are grouped into two categories:
Type I-the remains of the dead animal or plant or the imprint...
How to stop snoring?
|The actual sound of snoring is actually air turbulence which vibrates the structures in the ‘upper airway’. One natural way to get some snore relief is to do some regular jaw exercises. A...|
What causes cramp?
|Cramp is a common symptom and can occur for a number of different reasons.
Muscle cramps are common whilst relaxed or resting in bed, during or after exercise, or after sitting in an awkward...
Why do we dream?
|No one actually knows why people dream. Doctors have theories though. One theory that doctors have is: When you are at school, home, or somewhere, there are so many things that are going on that...|
How much water should I drink a day?
|It's a simple question with no easy answers. Studies have produced varying recommendations over the years, but in truth, your water needs depend on many factors, including your health, how...|
How to grow potatoes?
|Growing potatoes is not all that difficult, as long as you stick to a few ground rules. Potatoes can be grown in practically any kind of soil, and if you’re considering turning a piece of...|
Why is the sky blue?
|As light moves through the atmosphere, most of the longer wavelengths pass straight through. So very little of the red, orange and yellow light is affected by the air.
However, much of the...
How big is the Universe?
|No one knows if the universe is infinitely large, or even if ours is the only universe that exists. And other parts of the universe, very far away, might be quite different from the universe...|
How to write a cover letter?
|With an in-tray full of applications an employer will spend approximately 20 seconds casting an eye over each one. You have to be sure that in those 20 seconds your cover letter has sufficient...|