engineering

John F. Brady (chemical engineer)

John F. Brady (chemical engineer) is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand John F. Brady (chemical engineer) rather than just read about it. In short: John Francis Brady (born January 8, 1954) is an American chemical engineer and the Chevron Professor of Chemical Engineering and Mechanical Engineering at the California Institute of Technology. He is a fluid mechanician and creator of the Stokesian dynamics method for simulating suspensions of spheres and ellipsoids in low Reynolds number flows.

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Reference excerpt

John Francis Brady (born January 8, 1954) is an American chemical engineer and the Chevron Professor of Chemical Engineering and Mechanical Engineering at the California Institute of Technology. He is a fluid mechanician and creator of the Stokesian dynamics method for simulating suspensions of spheres and ellipsoids in low Reynolds number flows. He is an elected fellow of the American Physical Society, a fellow of the Society of Rheology, as well as a member of the National Academy of Sciences, the National Academy of Engineering, and the American Academy of Arts and Sciences.

Education and career Brady was educated in chemical engineering at the University of Pennsylvania (B.S. 1975), the University of Cambridge, England (Certificate of Postgraduate Study, 1976), and Stanford University (M.S. 1977 and Ph.D. 1981). He completed his dissertation entitled Inertial effects in closed cavity flows and their influence in drop breakup advised by Professor Andreas Acrivos. Following his Ph.D., Brady was a NATO post-doctoral fellow at the Ecole Superiéure de Physique et de Chimie Industrielles, Paris, France (1980–81).

Following his research in France, Brady joined the faculty in chemical engineering at the Massachusetts Institute of Technology as an assistant professor in 1981. He moved in 1985 to the Division of Chemistry and Chemical Engineering at the California Institute of Technology, which has been his academic home since. In 1999, Brady was elected a member of the National Academy of Engineering for his work in elucidating the basic mechanics of and developing methods for the simulation of multiphase flows.

Research contributions Brady is an expert in the theory and simulations of fluid mechanics, rheology, and transport phenomena. He has made significant research contributions in the understanding of active matter and suspensions. Among his many accomplishments is the creation of Stokesian dynamics with Georges Bossis. The Stokesian dynamics method allows the accurate and rapid simulation of the dynamics and rheology of suspensions of spherical particles at low Reynolds number. The technique has been used by researchers world-wide to model suspensions and understand a variety of physical systems. Brady and collaborators discovered the micromechanical "swim pressure" that contributes to the unique self-assembly and phase separation in a broad class of active matter. Brady was an associate editor of the Journal of Fluid Mechanics (1990-2004) and the editor of the Journal of Rheology (2005-2012). According to Google Scholar, his publications have received over 19,000 citations and his h-index is 68.

Awards and honors He has received numerous awards and honors which include:

Election to the National Academy of Sciences (2020) Fellow of the Society of Rheology (2015) American Academy of Arts and Sciences (2014) Fluid Dynamics Prize (APS) (2011) Bingham Medal Society of Rheology (2007) Election to the National Academy of Engineering (1999) Professional Progress Award, AIChE (1998) Fellow of the American Physical Society (1994) ASEE Curtis W. McGraw Research Award (1993) Joliot-Curie Professor, ESPCI Paris, France (1988), (1996) Camille and Henry Dreyfus Teacher-Scholar Award (1986) Presidential Young Investigator Award, National Science Foundation (1985)

Selected publications Brady, J F; Bossis, G (1988). "Stokesian Dynamics". Annual Review of Fluid Mechanics. 20 (1). Annual Reviews: 111–157. Bibcode:1988AnRFM..20..111B. doi:10.1146/annurev.fl.20.010188.000551. ISSN 0066-4189. Wagner, Norman J.; Brady, John F. (2009). "Shear thickening in colloidal dispersions". Physics Today. 62 (10). AIP Publishing: 27–32. Bibcode:2009PhT....62j..27W. doi:10.1063/1.3248476. ISSN 0031-9228. Jamali, Safa; Brady, John F. (25 September 2019). "Alternative Frictional Model for Discontinuous Shear Thickening of Dense Suspensions: Hydrodynamics". Physical Review Letters. 123 (13) 138002. American Physical Society (APS). Bibcode:2019PhRvL.123m8002J. doi:10.1103/physrevlett.123.138002. ISSN 0031-9007. PMID 31697551. S2CID 204206911. Omar, Ahmad K.; Wang, Zhen-Gang; Brady, John F. (16 January 2020). "Microscopic origins of the swim pressure and the anomalous surface tension of active matter". Physical Review E. 101 (1) 012604. arXiv:1912.11727. Bibcode:2020PhRvE.101a2604O. doi:10.1103/physreve.101.012604. ISSN 2470-0045. PMID 32069575. S2CID 209501001. Takatori, Sho C.; De Dier, Raf; Vermant, Jan; Brady, John F. (10 March 2016). "Acoustic trapping of active matter". Nature Communications. 7 (1) 10694. Springer Science and Business Media LLC. Bibcode:2016NatCo...710694T. doi:10.1038/ncomms10694. ISSN 2041-1723. PMC 4792924. PMID 26961816. Takatori, S. C.; Yan, W.; Brady, J. F. (11 July 2014). "Swim Pressure: Stress Generation in Active Matter" (PDF). Physical Review Letters. 113 (2) 028103. American Physical Society (APS). Bibcode:2014PhRvL.113b8103T. doi:10.1103/physrevlett.113.028103. ISSN 0031-9007. PMID 25062240.

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Illustrations

Worked examples

Example 1 — a first encounter with John F. Brady (chemical engineer)

Start with the simplest possible case. Write down what John F. Brady (chemical engineer) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to John F. Brady (chemical engineer) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about John F. Brady (chemical engineer) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of John F. Brady (chemical engineer)

In research: John F. Brady (chemical engineer) appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses John F. Brady (chemical engineer) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: John F. Brady (chemical engineer) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1954 births, Alumni of the University of Cambridge, American chemical engineers, so understanding it makes those chapters shorter.
In everyday life: Look for John F. Brady (chemical engineer) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study John F. Brady (chemical engineer) in 20 minutes

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Frequently asked questions

What is John F. Brady (chemical engineer) in simple terms?

Why does John F. Brady (chemical engineer) matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study John F. Brady (chemical engineer)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on John F. Brady (chemical engineer).