How do you find the average of a Nusselt number?
In Fluent the surface nusselt number is calculated based upon the formula ((h_eff*L_ref) / k) where h_eff is heat transfer coefficient and L_ref is reference length which you define in refernce values panel and k is thermal conductivity.
What is the Nusselt number used for?
A Nusselt number of order unity would indicate a sluggish motion little more effective than pure fluid conduction: for example, laminar flow in a long pipe. A large Nusselt number means very efficient convection: For example, turbulent pipe flow yields Nu of order 100 to 1000.
What are the two meanings of scale?
(Entry 1 of 7) 1 : an instrument or machine for weighing. 2a : a beam that is supported freely in the center and has two pans of equal weight suspended from its ends —usually used in plural. b : either pan or tray of a balance.
What is scale and why is it important?
Scale is important simply because the magnitude of the problems faced in areas such as poverty reduction, the environment, gender issues and healthcare require solutions at scale. By their nature they are often cross-border or not focused solely on one location.
What is scale and types of scale?
Introduction: There are 4 types of scales, based on the extent to which scale values have the arithmetic properties of true numbers. The arithmetic proper- ties are order, equal intervals, and a true zero point. From the least to the most mathematical, the scale types are nominal, ordinal, interval, and ratio.
What are the two types of scales used to find out the distance?
There are two types of map scales, bar and lexical, but bar scales are used more frequently because they represent the distance ratio visually instead of in words, as is the case with lexical scales. Using map scales is important in the real world if you want to figure out the distance you are traveling.
What are the methods to express a scale?
How Scale is Shown on a Map. There are three main ways that scale is indicated on a map: graphic (or bar), verbal, and representative fraction (RF).
In which method the scale is expressed in words?
Statement scale is type of map scale expression in which scale is expressed in form of a written statement, for example one centimeter on the map represent ten centimeter on the ground.
What is a verbal scale?
Verbal scale expresses in words a relationship between a map distance and a ground distance. Usually it is along the lines of: One inch represents 16 miles. Here it is implied that the one inch is on the map, and that one inch represents 16 miles on the ground. The second type of scale is a graphic scale, or bar scale.
What is a key on a map?
Definition: A key or legend is a list of symbols that appear on the map. For example, a church on the map may appear as a cross, a cross attached to a circle, a cross attached to a square.
What is the importance of a key on a map?
A map key is an inset on a map that explains the symbols, provides a scale, and usually identifies the type of map projection used. Technically, the key is part of the map legend. The key explains the symbols while the legend holds the key and other information.
What is MAP key kids?
A map key, also known as a legend, is normally located at the bottom of the map on the left or right. Legends are important because they help readers understand what certain symbols, colors, and lines represent on maps.
What is a key symbol?
The key or lock icon is the Android symbol for VPN service. It will remain within the notification bar when Safe Browsing is enabled.