Lou Landweber (1912 to 1998) was active at IIHR from his arrival in 1954 nearly until his death at age 86 (16 years after his retirement). A recruit from the U.S. Navy’s David W. Taylor Model Basin (now Naval Surface Warfare Center, Carderock Division), he arrived as a mature scientist to develop a research program in ship hydrodynamics. His prolific efforts and publications, complemented by his humor and humanity, helped develop this subject area into one of IIHR’s major research fields and firmly established Landweber’s international repute.

            This record group includes 12 boxes of materials: 4 boxes of Landweber’s research efforts, 5 of correspondence (both to and from Landweber), one of miscellanea (including teaching materials and paper reviews), and 2 boxes containing selected writings and personal materials. Research and correspondence files have been arranged chronologically, with labels based on Landweber’s original files. Because attempts were made to maintain the organization of the original filing system, items within each file may not be chronological, and some items may seem inconsistent or unrelated to the topic at hand.

Papers in the two “Selected Writings” boxes were collected for possible inclusion in a “Landweber Selected Publications” book. The project was initiated (but not completed) in 1997. The files contain original copies of many of the significant papers authored by Landweber. Because of the large number included papers, specific publications are catalogued according to potential book chapters (rather than individually listed). Also filed here are items normally included in a “bibliographic materials” box: personal papers, CVs, publication lists, etc. Materials were kept together (even though they might overlap with the “Research” and “Correspondence” files) in case the book project is resumed. 

            The University of Iowa Special Collections (at the UI Main Library) holds an oral history interview of Landweber, which should also be consulted by persons interested in Landweber and his work. Additional information also is included in IIHR’s Hydraulics Laboratory record group, Boxes 4 and 5, which contains materials on IIHR’s ship model towing tank, a research tool initiated by and crucial to Landweber’s research.

Teaching, Reviews of Papers, and Miscellaneous (One Box, 1943 - 1977)

•        Teaching: PhD Exams and Thesis Topics Proposed by Landweber (1955-1967)
   

•        Resistance and Propulsion Course, 1961-62, Lecture Notes and Tests
   

•        Ship Dynamics Course, 1962, Exams and Lecture Notes
   

•        Water and Wave Theory, CSU Summer Institute, 1966, Lecture Notes, Correspondence, Photograph
   

•        Ship Resistance, taught at IIHR and also at St Anthony Falls, 1966, Lecture Notes and Overheads
   

•        Student Evaluations (undated)
   

•        Patents for Shroud Rings, Water Kites (1943-1946)
   

•        Ideas and Proposed Projects (1949-1965)
   

•        Lagally’s Theorem, paper, calculations (1971)
   

•        Miscellaneous Personal items
   

•        Review of Papers Written by Others (numerous authors, papers). Three folders:

1958-1967

1968-1972

1973-1977, undated

•        “Selected Writing of Landweber,” compilation of 15 papers of unknown origin in a bound booklet (1942-1992)

Research - Box 1: Projects Beginning 1940 – 1968

•        Equivalent Mass Experiment (1940; data, calculations)
   

•        Friction and Turbulence (1948-1953; memos, papers, correspondence)
   

•        Skin Fricton Resistance (early 1950s; correspondence, committee reports, computations, comments)
   

•        Bureau of Ship Hydrodynamics (1950-1951; research program outlines, memos, notes)
   

•        Trip to Paris and England (1950; notes, correspondence)
   

•        Added Mass-Coefficient of Bodies of Revolution (1953-1955; calculations, correspondence)
   

•        Tests of a Cavitating Hydrofoil Project (1957-1961; final report, calculations, notes, correspondence)
   

•        “Surface Waves Due to the Real Flow about a Circular Cylinder in a Channel” by Landweber (1958-1961; draft paper, correspondence, calculations, analysis)
   

•        “Potential Flow about Bodies of Revolution and Symmetric Two-Dimensonal Flows” (1959; paper) 
   

•    “Vibrations in an Incompressible Fluid” (1963; paper)
   

•        “Variation of Viscous Drag with Froude Number” (1963; paper, w/ J. Wu)
   

•        “The Shape and Tension of a Light Flexible Cable in a Uniform Current” by Landweber and Protter (1964; paper, correspondence, calculations)
   

•        “Ship Resistance in Rectangular Channels” & “A Note on Blockage Effect” by Landweber (1964-1974; papers, correspondence, data, notes)
   

•        “Study of Methods of Determining Wavemaking Resistance by means of Surface Profile Measurements” (1965; progress report by H. Kobus)
   

•        Various contract efforts for Hydro-Space Systems Corporation (1965-1969; correspondence, proposals, notes, reports, photographs; includes decent “mug shot” of Landweber)
   

•        “Effect of Walls on Flow About a Hemisphere” by D. Squarer (1966; paper, data)
   

•        Towing Tank Tests of the ESSO Tanker (1968-1969; contract, correspondence)

Research - Box 2: Projects Beginning 1968 – 1973

•        Thick Boundary Layers Near the Tail of Bodies of Revolution (1968-1974; proposals, progress reports, correspondence)
   

•        Investigation of Performance of Seafac Oil-drilling Platform (1968-1982; correspondence, proposal, calculations)
   

•        “Source Distribution on a Ship-Hull Surface” by L. Landweber (1969; handwritten original, grant information)
   

•        “A Hollow-Vortices Model of Near-Wakes Behind a Wedge” and other papers by A. Lin and L. Landweber (1970-1976; correspondence, analysis)
   

•        “Longitudinal-Cut Method for Computing the Wave Resistance of a Ship Model in a Towing Tank” w/ D Moran, and information on American Towing Tanks Conference (Brazil, 1971; conference description, photo of participants, paper)
   

•        Drag Reduction by High Polymer Additives (1971-1973; ONR workshop, research contract, proposals, correspondence)
   

•        Hull Vibration Studies w/ F. Everett Reed, Littleton Research Corp. (1972; correspondence)
   

•        Fictional Resistance of Flat Plates in Dilute Polymer Solutions (1972-1973; paper, correspondence)
   

•        Review of Cable System Dynamics Paper (for Westinghouse Electric Corp, 1972; contracts, correspondence, analysis)
   

•        Drag Reduction, papers by Landweber and Others (1973-1976; papers, correspondence)
   

•        Review of  “The Lift Force due to Von Karman’s Vortex Wake” by D. Sallet (1973)
   

•        “Force on a Moored Ship Due to a Passing Vehicle” (1972; correspondence, original draft
   

•        Ship Model Resistance studies (NSRDC contract, 1973-1974; proposals, correspondence, reports, notes). Two folders:

1973-1974

1975-1976

Research - Box 3: Projects Beginning 1974 – 1977

•        “Effect of Turbulence in the Wake on Wave Resistance” by K. Gopalakrishran (1974; handwritten copy, by L. Landweber?)
   

•        17^th American Towing Tank Conference (1974; papers by others, Landweber’s contributions)
   

•        “Axisymmetric Potential Flow in a Circular Tube” by L. Landweber (1974; review, correspondence, data)
   

•        Study of Equivalent Body of Revolution for Calculation of Drag of Ship Forms (1975; data, notes, graphs)
   

•        Second Order Ship-Wave Theory (NSF Grant, 1975-1976; correspondence, calculations, final report)
   

•        “Three-Dimensional Boundary Layers and the Origin of Lift on Bodies of Revolution at Incidence” (1975-1976; proposal, correspondence, progress reports)
   

•         “Accurate Parametric Representation of Ship Sections by Conformal Mapping” by Landweber and Macagno (1975; paper, calculations)
   

•        Landweber’s Notes of Papers Written by Others (1975-1977; numerous authors, papers)
   

•        Landweber’s Review of Tetra Tech Reports (for NSF, 1976; correspondence)
   

•        Tests of Flow Characteristics of a Fin with Flaps (for Westinghouse Corporation, 1977; correspondence, proposal, calculations, data, report, photographs)

Research - Box 4: Projects Beginning 1978 – 1987 and Undated

•        Effect of Boundary Layer on Thrust Deduction Contract (1978-1981; proposals, correspondence)
   

•        “Viscous Effect on Ship Wave Resistance” (talk at Basic Research Forum, 1980; talk and meeting notes)
   

•        Ship Wave-Resistance Calculations (two workshops, 1980-1983; correspondence, workshop plans, data and graphs)
   

•        Fluid Dynamics of Ship Viscous Flow with 3-D Separation (US-Japan Cooperative Research Program, 1981-1982; planning and correspondence, travel to Japan, proposal, report)
   

•        Papers w/Anton Beringer (1984, correspondence)
   

•        Hydraulic Analysis of Bypass for Open-Heart Surgery (For Dr. Meng, (1987; correspondence, calculations, analysis)
   

•        “Wall Effect” (undated; calculations)
   

•        Diagrams of Various Fins Tested at Stevens (undated; sketches, photographs)
   

•        Effect of Temperature Gradient on Wave-Making Resistance (undated; notes, calculations)
   

•        “Added Masses” (undated; paper, calculations)
   

•       Blockage Effect on Wave Resistance (undated; charts, calculations, data)
   

•        Ellipse-Parabola-Hyperbola Form (undated; charts, write up)
   

•        IIHR’s Towing Tank – Dynamometer and Velocity Measurements (undated; write-ups on each, and Landweber’s notes; photographs)
   

•        “Sea Floats” by J.G. Thews and L. Landweber (undated; paper, graphs)
   

•        “Curves of Planing, Floats” by J. Shoemaker (undated; graphs)
   

•        “Bechett’s Notes on Research” kept by Landweber (undated; miscellaneous topics)
   

•        “Wake Behind a Symmetrical Cylinder” (handwritten copy)
  “Submarine Wake” (undated)

Correspondence - Box 1: Mixed (1960 – 1975)

•        Regarding Proposals and Reports. Three folders:

1960-1966

1967-1970

1971-1972

•        Mixture of Topics. Three of 4 folders:

1961-1971

1972-1973

1974-1975

Correspondence - Box 2: Mixed (1946 – 1978)

•        Mixture of Topics. Fourth of 4 folders: 1976-1977
   

•        Regarding ATTC Friction Research Committee and Reports (1946-1959)
   

•        With Georg Weinblum, regarding German publications of Landweber’s research (1952-1954)
   

•        With Kurt Wendel (1954-1967)
   

•        With Society of Naval Architects, regarding a variety of Landweber’s papers published in Journal of Ship Research (1957-1964)
   

•        With David Taylor Model Basin, re. DTMB contracts (1958-1967)
   

•        With Hunter Rouse, mixed topics (1959-1962)
   

•        With John Breslin Davidson Laboratory, NJ, mixed topics (1960-1978)
   

•        With Lo-Ching Hua (1961-1962)

Correspondence - Box 3: Mixed (1964-1994)

•        Regarding Landweber’s trip to South America (1964)
   

•        Regarding Encyclopedia of Science and Technology entries written by Landweber (1967-1968)
   

•        Regarding Sabbatical Leave at Technion, Israel; 1971 (1969-1972)
   

•        With Society of Naval Architects and Marine Engineers (mostly meeting minutes). Two folders:

1970-1974

1975-1977

•        With T. Miloh (1973-1980)
   

•        Photo of personnel, from Society of Naval Architects and Marine Engineers (November 1974; photograph)
   

•        Regarding Landweber’s Honors Received (1977-1980)
   

•        Regarding trip to Hokkaido University, Japan, 1979 (1978-1979; letters, trip journal, proposed research)
   

•        Regarding travel to Korea, 1981, in conjunction with Japanese travel (1980-1982)
   

•        Regarding Weinblum Memorial Lecture, 1981 (1980-1982; letters, overheads)
   

•        With Professor Kazuhiro Mori (1980-1983)
   

•        Regarding Sabbatical Leave, 1981 (1980-1982)
   

•        With Larry Forbes (1981-1986)
   

•        With Robert Ettema (1993-1994)

Correspondence - Box 4: Office of Naval Research (1954-1982)

•        With ONR; proposals, letters, research ideas, and reports. Two folders:

1954-1961

1962-1970

•        With ONR; proposals, reports (1974-1977)
   

•        With ONR; proposals, letters, research ideas, and reports (1978-1982)

Correspondence - Box 5: Recommendations and Student Letters (1953 – 1994)

•        Landweber’s letters to/from students and recommendation letters (for previous students and other professionals).  Seven folders:

1953-1960

1961-1966

1967-1972

1973-1978

1979-1981

1982-1986

1987-1994 and undated

Selected Writings Project - Box 1.

•        Index for planned book
   

•        Landweber’s personal and biographical information
   

•        Landweber’s  Curriculum Vitas
   

•        Landweber’s publication lists
   

•        Landweber’s notes on Hydrodynamics
   

•        13^th International Towing Tank Conference (information, correspondence)
   

•        14^th International Towing Tank Conference (Resistance Committee Report, correspondence, information, drafts of research papers)
   

•        17^th American Towing Tank Conference (information, correspondence)
   

•        Added Mass, Force, and Moments papers
   

•        Blockage papers
   

•        Boundary Layer papers
   

•        Conformal Mapping papers
   

•        Ship Vibration players
   

•        Towing Cable papers
   

•        Viscous - Inviscid Interaction papers
   

•        Wave Resistance papers

Selected Writings Project - Box 2.

•        General Ship Hydrodynamics papers
   

•        Potential Flow papers
   

•        Two Body Problem papers
   

•        Viscous Drag papers
   

•        Miscellaneous papers / mixed

Processed 7/2003

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