1. Establish a solid mathematical foundation: Fluid mechanics involves many complex mathematical concepts, such as calculus, linear algebra, partial differential equations, etc. Therefore, to better understand the principles of fluid mechanics, we must first master these mathematical knowledge.

2. Learn basic concepts and principles: understand the basic concepts of fluid mechanics, such as continuity equation, momentum equation, energy equation, etc. And their relationship. At the same time, learn various fluid mechanics models, such as Euler method, Naville-Stokes equation and so on.

3. Reading classic textbooks and reference books: Choose a classic textbook of fluid mechanics, such as fluid mechanics (Landau &; Lifshitz) or "Introduction to Fluid Mechanics" (Flamholtz), and study its contents carefully. In addition, you can read some related reference books to deepen your understanding of fluid mechanics.

4. Hands-on practice: Verifying theoretical knowledge through experiments and numerical simulation. This can help you better understand the practical application of fluid mechanics and improve your ability to solve practical problems.

5. Attend courses and lectures: sign up for some courses and lectures on fluid mechanics, so as to consult experts and obtain more learning resources.

6. Join an academic team or laboratory: Joining an academic team or laboratory that studies fluid mechanics will give you an opportunity to communicate with other professionals, discuss problems together and improve your research ability.

7. Do more exercises and cases: By doing a lot of exercises and cases, you can test your mastery of fluid mechanics knowledge and improve your ability to solve problems.

8. Patience and perseverance: Learning fluid mechanics is a long-term process that requires a lot of time and energy. Therefore, patience, perseverance and continuous efforts are needed to master this subject finally.