"Small white CFD Tour" 154 Realms

The weather is good, small white early in the morning to get up, eat breakfast on to Ben Laboratory and go. On the way to meet the same laboratory calf brother.
"Small white, so early ah", the calf brother found a small white, greeting way.
"Good morning, brother New Shi, just after dinner," said Xiao Bai.
"By the way, brother New Shi, how do you think CfD is good?" , "asked Xiao Bai.
"In my personal opinion, a person's ability can be divided into four stages: unconscious inability, conscious inability, conscious ability and unconscious ability, how to say, I tell you a few real cases," So brother New Shi gave Little white a few examples.

The case of Brother New Shi

1 unconscious inability

Zhang is my master student, is a very studious child, the ability to accept new things very strong. He became addicted to CfD in his last semester. Zhang in the library to find a few books on CFD software applications, Tiger did a few of these simple cases, there is no and the software and the case of the underlying basic theory of understanding.

However, Zhang is not aware of his lack of students in front of the same as the CFD experts. "Turbulence calculation?" It's easy to check the turbulence model in the software. "," multiphase flow calculation? Not hard, just a few more materials than single-phase flow "," combustion calculation? It seems hard to actually be simple, add a chemical reaction is ", such topics often come out of Zhang's mouth. In his mind, the so-called CfD is the use of software to solve the flow problem, that's all.

Zhang Tong Learning is only contact with a little bit of CfD's fur on the idea that they have mastered all, completely unaware of their own problems, not aware of their shortcomings and not consciously to compensate for their shortcomings, the operating mechanism of software ignorance and blindly rely on software, more tragic is, Not realizing that he could learn more, Zhang stopped studying, and he thought he was omnipotent in the field of CfD.

He is typical of unconscious incapacity.

2 conscious inability

Li is a friend I met on the Internet, he is in a production of fluid machinery factory engaged in the development of centrifugal pump. Li had a good background in fluid mechanics, studied fluid mechanics and heat transfer at university, and learned about fluids, but he knew that his theoretical knowledge was not enough to support his work, because he knew very little about the current computational fluid mechanics widely used, and there was much to learn.

Therefore, Li students in the Internet search computational fluid dynamics involved in the theory, also bought some related learning materials, after familiar with the software operation, and back to the most basic study of fluid mechanics and computational fluid mechanics, from the theory behind the software, learning the working principle behind the software, and strive to master the operating mechanism of software, and try to modify various calculation parameters, analyze the effect of parameter modification on the calculation results.
Li also frequented a variety of learning forums, he put his problems in a relatively professional way to write to the forum, and the mentality of beginners to seek help, and thanked the respondents.

Li is in the second phase of CFD learning: a conscious inability.

3 Conscious and capable

Xiao Wang is a fluid machinery research and Development Institute of the researchers, he from a famous University of fluid mechanics, in the school during a large number of theoretical research in fluid mechanics, and occasionally do some basic experiments to verify his theory, but Xiao Wang always felt it difficult to apply their knowledge to engineering design. Xiao Wang did not have contact with the CfD in the school, and no use of any CFD software, but currently engaged in the work is not a time to deal with CfD, Xiao Wang is very distressed, he decided to learn CFD.

Xiao Wang only spent three days familiar with the use of mainstream CFD software, the university during the systematic fluid mechanics knowledge gave him a great help, he added some finite volume theory has been familiar with the CFD software behind the work mechanism, for the CFD pre-processing and post-processing, he can have a smooth grasp. In less than one months, he has been able to use CFD software with the theory of fluid mechanics to carry out daily research and development work.

Xiao Wang no longer satisfies commercial CFD software, because he found that some special functions can not be achieved by using commercial software, and commercial software program code can not be changed, users can only wait for the release of commercial software updates. Xiao Wang found that there are some source code open CFD software is very good, can easily integrate some new algorithms, it is easy to add some new features to meet the work needs, Wang fan on the open-source CFD software.

The development of open-source CFD software is not so simple, its solver development involves a deep theoretical background, but it is difficult to take the small Wang, good mathematical skills to his study of computational fluid mechanics, the deep theoretical background of fluid mechanics makes it easier to understand the purpose and objectives of solver development. Wang took pains to debug his program, although there are many unexpected problems, but Xiao Wang firmly believe that the road to go down is right.

Little Stony walked on the road to becoming an excellent expert, but he would not add this title to himself, he was willing to wait.
Ed is conscious and capable.

4 unconscious ability

This is the ultimate stage of the CFD level. It is not only the result of accumulation of knowledge, but also a series of logical rules in a few years slowly engraved into a person's mind results.

When we face such a person, we have to sincerely admire him for such a complex problem can be more so easy to deal with. The CFD user looks like a solution that can sniff out problems, rather than thinking about them.

Mathematical abstraction of fluid phenomena, physical modeling, CFD software applications and software development, and the application of CFD solutions to problems in engineering, these will automatically be reflected in his work. Such people can easily use the right CFD tools to solve fluid problems.

Solemn declaration

• This series according to the actual experience adaptation, if there is coincidence, do not human flesh

• Reproduced please ensure that the text is complete

From for notes (Wiz)

"Small white CFD Tour" 154 Realms