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Llewellyn M.K. Boelter
Llewellyn Michael Kraus Boelter (August 7, 1898 – July 27, 1966) was an American engineer, Professor of Mechanical Engineering at the University of California, Los Angeles, and founding Dean of its UCLA Henry Samueli School of Engineering and Applied Science.George J. Maslach, Stafford L. Warren & Joseph W. McCutchan.Llewellyn Michael Kraus Boelter, Engineering: Berkeley and Los Angeles in: ''1968, University of California: In Memoriam,'' University of California (System) Academic Senate. May 1968. p. 18-21 In the late 1920s Boelter came into prominence for by his work in the field heat transfer, for which he had investigated heat transfer in the automobile radiator of the tubular type. F. W. Dittus and Boelter proposed "a convective heat transfer correlation for turbulent flows," which became known as the Dittus-Boelter equation. In 1957 he was awarded the ASME Medal. Biography Youth and education Boelter was born Winona, Minnesota in 1898, son of John Julius Boelter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winona, Minnesota
Winona is a city in and the county seat of Winona County, in the state of Minnesota. Located in bluff country on the Mississippi River, its most noticeable physical landmark is Sugar Loaf. The city is named after legendary figure Winona, who some sources claimed was the first-born daughter of Chief Wapasha of the Dakota people. The population was 25,948 at the 2020 census. History The city of Winona began on the site of a Native American village named Keoxa. The seat of the Wapasha dynasty, Keoxa was home to a Mdewakanton band of the eastern Sioux. European immigrants settled the area in 1851 and laid out the town into lots in 1852 and 1853. The original settlers were immigrants from New England.Minnesota: A State Guide page 263 The population increased from 815 in December, 1855, to 3,000 in December, 1856. In 1856 German immigrants arrived as well. The Germans and the Yankees worked together planting trees and building businesses based on lumber, wheat, steamboa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dittus-Boelter Equation
In thermal fluid dynamics, the Nusselt number (, after Wilhelm Nusselt) is the ratio of convective to conductive heat transfer at a boundary in a fluid. Convection includes both advection (fluid motion) and diffusion (conduction). The conductive component is measured under the same conditions as the convective but for a hypothetically motionless fluid. It is a dimensionless number, closely related to the fluid's Rayleigh number. A Nusselt number of value one (zero) represents heat transfer by pure conduction. A value between one (zero) and 10 is characteristic of slug flow or laminar flow. A larger Nusselt number corresponds to more active convection, with turbulent flow typically in the 100–1000 range. A similar non-dimensional property is the Biot number, which concerns thermal conductivity for a solid body rather than a fluid. The mass transfer analogue of the Nusselt number is the Sherwood number. Definition The Nusselt number is the ratio of convective to c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Winona, Minnesota
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form " people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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