The Subject Ph.D. and Librarianship

Richmond, Phyllis A.

doi:10.5860/crl_18_02_123

Cited by 5 publications

(6 citation statements)

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“…X , z = 8 ft; . , z = 10 ft. Keshavan (1972) and Richmond (1957) should be considered suspect as the flow may not have been in a fully turbulent state. Thus for the determination of constants in the wall law we use measurements at stations further downstream (so as to ensure that tripping effects have become small) and larger values of R,…”

Section: Resultsmentioning

confidence: 99%

“…Author Richmond (1957) Yu (1959) Willmarth & Yang (1970) Rao & Keshavan (1972) Axisymmetric turbulent boundary layer on a circular cylinder 117 must be capable of being regarded as higher-order perturbations to a basically two-dimensional flow. A consequence of this argument is that the measurements quoted above must show a logarithmic region when plotted in two-dimensional co-ordinates.…”

Section: N Afzal and R Narasimhamentioning

confidence: 99%

“…The simplest problem of this class, where transverse curvature effects are important, is that of the axisymmetric turbulent boundary layer along a long circular cylinder with zero pressure gradient. This problem has been extensively studied in the literature (Richmond 1957;Yu 1958;Yasuhara 1959;Rao 1967a;Chin, Hulesbos & Hunnicutt 1967;Willmarth & Yang 1970;Rao & Keshavan 1972), but there is no agreement yet regarding the appropriate similarity laws for TABLE 1. Different proposals for velocity distribution in log region of the wall layer the mean flow.…”

Section: Introductionmentioning

confidence: 99%

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Axisymmetric turbulent boundary layer along a circular cylinder at constant pressure

Afzal

Narasimha

1976

J. Fluid Mech.

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A constant-pressure axisymmetric turbulent boundary layer along a circular cylinder of radiusais studied at large values of the frictional Reynolds numbera+(based upona) with the boundary-layer thickness δ of ordera. Using the equations of mean motion and the method of matched asymptotic expansions, it is shown that the flow can be described by the same two limit processes (inner and outer) as are used in two-dimensional flow. The condition that the two expansions match requires the existence, at the lowest order, of a log region in the usual two-dimensional co-ordinates (u+,y+). Examination of available experimental data shows that substantial log regions do in fact exist but that the intercept is possibly not a universal constant. Similarly, the solution in the outer layer leads to a defect law of the same form as in two-dimensional flow; experiment shows that the intercept in the defect law depends on δ/a. It is concluded that, except in those extreme situations wherea+is small (in which case the boundary layer may not anyway be in a fully developed turbulent state), the simplest analysis of axisymmetric flow will be to use the two-dimensional laws with parameters that now depend ona+or δ/aas appropriate.

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Section: Resultsmentioning

confidence: 99%

Section: N Afzal and R Narasimhamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Axisymmetric turbulent boundary layer along a circular cylinder at constant pressure

Afzal

Narasimha

1976

J. Fluid Mech.

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“…The article, entitled "The Subject Ph.D. and Librarianship," provided insight into the job opportunities for subject 'Ph.D.s in libraries. 7 However she failed to mention the field of library education in this regard. Her conclusion that a subject Ph.D. would have the best of both worlds (status with faculty members as well as with other librarians) was an accurate reflection of the prestige enjoyed by those subject Ph.D.s who entered the field of librarianship in those decades.…”

mentioning

confidence: 99%

“…Two decades ago Phyllis Richmond observed that subject Ph.D.s enter the field of librarianship for two reasons: ( 1 ) their interest in libraries developed from teaching or research in their subject field, or ( 2) they enter by design perhaps because they do not want to teach. 1 Today we can add a third reason -the academic job crisis! It is obvious that the influx into librarianship of subject Ph.D.s is being accelerated by the strained job market in many academic disciplines.…”

mentioning

confidence: 99%