Fluid mechanics (Introduction)

As we saw in first post what is chemical engineering? It is diverse engineering branch and covers many fields. Fluid mechanics is one of them.

Fluid Mechanics is that part of applied mechanics, which is concerned with the statics and dynamics of liquids and gases.

Simply, it is the study of forces and flow within fluids.

A knowledge of fluid mechanics is essential for the chemical engineer  because the majority of chemical processing operations are conducted either partially or totally in the fluid phase. Such knowledge is especially valuable for solving problems in the biochemical, energy, mining, chemical, polymer, fermentation, materials, vast – processing and petroleum industries.

Is fluid mechanics in chemical engineering is same as in other engineering branch ?

” Concept remains same everywhere. Either you study it in this branch or in other branch. Fluid mechanics will be fluid mechanics.” By Dr. Dharmendra D. Mandaliya

Well, fluids will behave same everywhare. They don’t know whether you are using them for chemical or other engineering reasons. The main difference is scale and application of fluid mechanics in chemical and other engineering branches. Chemical engineers generally interested in microscopi systems like turbulent flow, boundary layer, flow in pipes, mass and heat transfer in fluids etc. They are not concern to hydrostatics. Wherein, other engineering branches like civil and mechanical engineering, they are interested in macroscopic systems like hydraulic machinery, fuel flow control systems, pneumatics, drainage basins, canals, sewage treatment plants etc. So they are much concern to hydrostatics.

So why to study fluid mechanics ?

In last three centuries, we humans discovered many things in nature. But there are still many phenomena is undiscovered in nature and even in our body itself.

By learning fluid mechanics, we can study and understand natural phenomena. So that we can develop a sustainable world, green energy, new habitable place in cosmos and evolve our self for better future.

Fluid mechanics gives answers of many day to day life questions like how planes fly in air ? How thousands of tons weighted ship floats over water ?why racing cars have less height then other cars? Why foot ball goes in curve path when footballer kicks ball? Why tornado have cone shape? How engineers measure flow rate and pressure in pipe? How they forecast about weather? How blood circulate in our body? And there is countless questions which answer can given by fluid mechanics.


Fluid mechanics is itself wide section of physics it’s applied to nearly all major engineering problem and research field.

Some of the applications are

  • In aerodynamics
  • In wind tunnel for testing materials
  • Hydraulic presses
  • Pump and motor
  • Refrigerator and air conditioners
  • Hydraulic Jack for lifting heavy loads
  • Turbine
  • Water slides and roller coasters
  • In biological & medical applications

 So it is the basic subject to engineering branch.

In my next post I will tell you what will you learn in fluid mechanics in B.Tech course in chemical engineering  and how to learn and become master of it.

Last caption ‘’ whole universe run on one simple formula in which chemical engineer is master that is Input = Output + Accumulation – Generation “

what is chemical engineer ?


In my first post i have talked about what is chemical Engineering?

So everyone thinks those who have studied chemical engineering are chemical engineers but is more than that.

In my opinion, a chemical engineer is someone in between mechanical engineer and a chemist with Excellency in mathematics and computer simulations.

Sometimes, in some work areas chemical engineers are known as “process engineers” because they take chemical reactions and super sizing them so that products can be mass produced in an economical way. Also sometimes they become product engineer(yes, chemical engineers known according their work areas). It is like apple to fruit.

               When i was in college, many high school students asked me “what is the difference between chemical engineer and chemist ?” My answer was “chemistry is pure science while chemical engineering is mixture of chemistry, mechanics, mathematics, economics, management and more.” Chemist develops new compounds and materials in glassware on a laboratory scale while chemical engineer deals with large scale reactions to make it by the ton, and at a profit. So the main difference between ChemE and chemist is originality and scale.



What makes chemical engineer awesome ?

Due to less numbers of seats for chemical engineering compare to other engineering branch and chemical engineering is one of the core Branch. So chemical engineering students have learn about every aspects of industry. They have to study from raw material to product, designing to construction, economics to management.

In previous post i mentioned some subjects those they study in university. Moreover that they learn professional softwares, laboratory work, internships, seminars, economics, management and awareness of technology used in chemical industries.

Which skills make them different from others?

  1. Creativity
  2. An understanding of engineering principle and mathematics
  3. Analytical & problem – solving ability
  4. The ability to work as a part of team
  5. Detail oriented
  6. Project  management skills
  7. Communication skills
  8. Motivate and can lead a team
  9. Computer savvy
  10. Commercial and business awareness

These skills make chemical engineer stand out from the crowed.


Where do chemical engineers work ?

            With the profound knowledge of technical field, science, economics and management and IT skills, chemical engineers work in places like laboratories, processing plants, engineering design office, corporate head office, research and development institutions, educational institutes, government entities and many other places.

            In my next post I will write about job scope of chemical engineers.

Last caption “ if u want to learn about how industries works, then you must know about your body because it is company which you are running from birth.” – Prof. Priyanka Pandya

what is a chemical engineering?


This is actually a vast question! So let me elaborate my views about the chemical engineering profession. It is the branch of engineering concerned with the design, construction, and operation of machines and plants that perform chemical reactions to make useful products.

It starts in the lab, much like science, yet progresses through the design and implementation of a full-scale process, its maintenance, and methods of testing and improving it. so it’s a vast branch of engineering that covers nearly all the aspects in chemical industries.

Today, the field of chemical engineering is a diverse one, covering areas from biotechnology and nanotechnology to mineral processing .

Here are  the name of some areas:

  1. Biochemical engineering
  2. Bioprocess engineering
  3. Bioinformatics
  4. Biomolecular engineering
  5. Biotechnology
  6. Catalysts
  7. Ceramics
  8. Chemical process modeling
  9. Chemical Technologist
  10. Chemical reactor
  11. Chemical weapons
  12. Cheminformatics
  13. Computational fluid dynamics
  14. Corrosion engineering
  15. Cost estimation
  16. Electrochemistry
  17. Electrochemical engineering
  18. Environmental engineering
  19. Fischer Tropsch synthesis
  20. Fluid dynamics
  21. Food engineering
  22. Fuel cell
  23. Gasification
  24. Industrial gas
  25. Industrial catalysts
  26. Materials science
  27. Metallurgy
  28. Microfluidics
  29. Mineral processing
  30. Molecular engineering
  31. Nanotechnology
  32. Natural environment
  33. Natural gas processing
  34. Nuclear reprocessing
  35. Oil exploration
  36. Oil refinery
  37. Petroleum engineering
  38. Pharmaceutical engineering
  39. Plastics engineering
  40. Polymers
  41. Process control
  42. Process design
  43. Process development
  44. Process engineering
  45. Process miniaturization
  46. Paper engineering
  47. Safety engineering
  48. Semiconductor device fabrication
  49. Separation processes
  50. Distillation processes
  51. Membrane processes
  52. Textile engineering
  53. Unit operations
  54. Water technology and many more…


So what’s about chemical engineer?

For them,

Jack of all trades, master of them all too!

It’s hardly surprising then that chemical engineers are known as ‘universal engineers’.As a chemical engineer, you will be involved in the design and development of a diverse range of products. Your work will focus on changing the chemical, biochemical and physical state of a substance to turn it into something else, such as making plastic from oil.

“A chemical engineer is someone who knows enough physics/mechanics to confuse a chemist, enough chemistry to confuse a physicist/mechanical engineer and enough mathematics to confuse himself.” -Prof. M.S. Ananth

So what makes chemical engineer to be all rounder?

As we know that chemical Engineering is very wide branch of Engineering. So that every colleges and universities try to cover it in their curriculum. Besides this, there is laboratory work, professional software learning, training programs ,seminars and much more.

Some general subjects which are taught in colleges/universities are

  1. Engineering mathematics
  2. Fluid mechanics
  3. General chemistry
  4. Process calculation
  5. Chemical technology
  6. Mechanical operations
  7. Reaction Engineering and kinetics
  8. Heat transfer
  9. Thermodynamics
  10. Mass transfer
  11. Equipment design
  12. Instrumentation and process control
  13. Plant design and project Engineering
  14. Process modeling, simulation and optimization
  15. Petroleum Engineering
  16. Transport phenomena
  17. Pollution control and safety measurement


It’s a quite long list (Yes, we have to study it).these are the basic subjects which are good chemical engineer know.

Last caption “A chemical engineer knows the philosophy of life”.