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10. The use of hot-films to characterise flow regimes on a sailing yacht hull-guidance for scaling

Author

Hutchison, C

Abstract

Within the yacht testing community there has been a continuing interest in and concern with, the effectiveness of techniques used to extrapolate model scale resis- tance tests to full scale values. While there are many aspects which influence the effectiveness of scaling results from model yacht experiments; this thesis has inves- tigated the use of hot-films to characterise boundary layer state so as to provide guidance in selection of model scale. A primary focus of this thesis was to ensure the method selected to characterise the boundary layer was suitable for commercial testing programs. The methodology included a robust technique for the installation and application of glue-on hot-film sensors and a modified data analysis method. The hull form used for this research was based on an International America's Cup Class yacht. The hull type has several features desirable in researching yacht hy- drodynamics including; non-immersed transom, minimal distortion to the hull lines and high aspect ratio foils. From data obtained from the hot-film sensors a series of conclusions were made. With turbulence stimulation, the on body flow was found to be fully turbulent for all Froude numbers tested (0.05 to 0.46). This implies that with appropriate boundary layer stimulation, the state of the boundary layer is not a limiting factor in the testing of a 1/8th scale IACC yacht model. The hot-film data also showed that the change in Cf due to waves generated by the hull were half that of the change due to natural transition. The lower limits of applicability of the Grigson flat plate friction line were also examined using this experimental data. For the 1/8th scale model tested these limits lie at a model ReL = 2:6 _ 106 (Froude num- ber of 0.27) as opposed to that reported in his paper as ReL = 1:5 _ 106 (Froude number of 0.15). In general it was concluded that if a yacht hull-form is slender with fair lines and no immersed transom and testing is at model speeds above 1.28 m/s (Froude number of 0.27) then it is possible to use a simple analytical approach to decide the correct model scale. If there is concern that there might be an issue with transition be- haviour it has been shown that it is possible and relatively simple to use hot-films to verify the boundary layer state.

Published
2023
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20. Introduction

Author

Rosenberg, D., Hutchison, C., Diaper, Dan, editor, Sanger, Colston, editor, Rosenberg, Duska, editor, and Hutchison, Christopher, editor

Published
1994
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23. Analysis of the Protein-Coding Content of the Sequence of Human Cytomegalovirus Strain AD169

Author

Chee, M. S., Bankier, A. T., Beck, S., Bohni, R., Brown, C. M., Cerny, R., Horsnell, T., Hutchison, C. A., III, Kouzarides, T., Martignetti, J. A., Preddie, E., Satchwell, S. C., Tomlinson, P., Weston, K. M., Barrell, B. G., Compans, R. W., editor, Cooper, M., editor, Koprowski, H., editor, McConnell, I., editor, Melchers, F., editor, Nussenzweig, V., editor, Oldstone, M., editor, Olsnes, S., editor, Saedler, H., editor, Vogt, P. K., editor, Wagner, H., editor, Wilson, I., editor, and McDougall, James K., editor

Published
1990
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38. Transforming knowledge systems for life on Earth: Visions of future systems and how to get there

Author

Fazey I, Schäpke N, Caniglia G, Hodgson A, Kendrick I, Lyon C, Page G, Patterson J, Riedy C, Strasser T, Verveen S, Adams D, Goldstein B, Klaes M, Leicester G, Linyard A, McCurdy A, Ryan P, Sharpe B, Silvestri G, Abdurrahim AY, Abson D, Adetunji OS, Aldunce P, Alvarez-Pereira C, Amparo JM, Amundsen H, Anderson L, Andersson L, Asquith M, Augenstein K, Barrie J, Bent D, Bentz J, Bergsten A, Berzonsky C, Bina O, Blackstock K, Boehnert J, Bradbury H, Brand C, Böhme (born Sangmeister) J, Bøjer MM, Carmen E, Charli-Joseph L, Choudhury S, Chunhachoti-ananta S, Cockburn J, Colvin J, Connon ILC, Cornforth R, Cox RS, Cradock-Henry N, Cramer L, Cremaschi A, Dannevig H, Day CT, de Lima Hutchison C, de Vrieze A, Desai V, Dolley J, Duckett D, Durrant RA, Egermann M, Elsner (Adams) E, Fremantle C, Fullwood-Thomas J, Galafassi D, Gobby J, Golland A, González-Padrón SK, Gram-Hanssen I, Grandin J, Grenni S, Lauren Gunnell J, Gusmao F, Hamann M, Harding B, Harper G, Hesselgren M, Hestad D, Heykoop CA, Holmén J, Holstead K, Hoolohan C, Horcea-Milcu AI, Horlings LG, Howden SM, Howell RA, Huque SI, Inturias Canedo ML, Iro CY, Ives CD, John B, Joshi R, Juarez-Bourke S, Juma DW, Karlsen BC, Kliem L, and Kläy A

Subjects
1604 Human Geography, 1605 Policy and Administration
Abstract

© 2020 The Author(s) Formalised knowledge systems, including universities and research institutes, are important for contemporary societies. They are, however, also arguably failing humanity when their impact is measured against the level of progress being made in stimulating the societal changes needed to address challenges like climate change. In this research we used a novel futures-oriented and participatory approach that asked what future envisioned knowledge systems might need to look like and how we might get there. Findings suggest that envisioned future systems will need to be much more collaborative, open, diverse, egalitarian, and able to work with values and systemic issues. They will also need to go beyond producing knowledge about our world to generating wisdom about how to act within it. To get to envisioned systems we will need to rapidly scale methodological innovations, connect innovators, and creatively accelerate learning about working with intractable challenges. We will also need to create new funding schemes, a global knowledge commons, and challenge deeply held assumptions. To genuinely be a creative force in supporting longevity of human and non-human life on our planet, the shift in knowledge systems will probably need to be at the scale of the enlightenment and speed of the scientific and technological revolution accompanying the second World War. This will require bold and strategic action from governments, scientists, civic society and sustained transformational intent.

Published
2020

39. Transforming knowledge systems for life on Earth : Visions of future systems and how to get there

Author

Fazey, I., Schäpke, N., Caniglia, G., Hodgson, A., Kendrick, I., Lyon, C., Page, G., Patterson, J., Riedy, C., Strasser, T., Verveen, S., Adams, D., Goldstein, B., Klaes, M., Leicester, G., Linyard, A., McCurdy, A., Ryan, P., Sharpe, B., Silvestri, G., Abdurrahim, A. Y., Abson, D., Adetunji, O. S., Aldunce, P., Alvarez-Pereira, C., Amparo, J. M., Amundsen, H., Anderson, L., Andersson, L., Asquith, M., Augenstein, K., Barrie, J., Bent, D., Bentz, J., Bergsten, A., Berzonsky, C., Bina, O., Blackstock, K., Boehnert, J., Bradbury, H., Brand, C., Böhme (born Sangmeister), J., Bøjer, M. M., Carmen, E., Charli-Joseph, L., Choudhury, S., Chunhachoti-ananta, S., Cockburn, J., Colvin, J., Connon, I. L. C., Cornforth, R., Cox, R. S., Cradock-Henry, N., Cramer, L., Cremaschi, A., Dannevig, H., Day, C. T., de Lima Hutchison, C., de Vrieze, A., Desai, V., Dolley, J., Duckett, D., Durrant, R. A., Egermann, M., Elsner (Adams), E., Fremantle, C., Fullwood-Thomas, J., Galafassi, D., Gobby, J., Golland, A., González-Padrón, S. K., Gram-Hanssen, I., Grandin, J., Grenni, S., Lauren Gunnell, J., Gusmao, F., Hamann, M., Harding, B., Harper, G., Hesselgren, M., Hestad, D., Heykoop, C. A., Holmén, J., Holstead, K., Hoolohan, C., Horcea-Milcu, A. -I, Horlings, L. G., Howden, S. M., Howell, R. A., Huque, S. I., Inturias Canedo, M. L., Iro, C. Y., Ives, C. D., John, B., Joshi, R., Juarez-Bourke, S., Juma, D. W., Karlsen, B. C., Kliem, L., Kläy, A., Kuenkel, P., Kunze, I., Lam, D. P. M., Lang, D. J., Larkin, A., Light, A., Luederitz, C., Luthe, T., Maguire, C., Mahecha-Groot, A. -M, Malcolm, J., Marshall, F., Maru, Y., McLachlan, C., Mmbando, P., Mohapatra, S., Moore, M. -L, Moriggi, A., Morley-Fletcher, M., Moser, S., Mueller, K. M., Mukute, M., Mühlemeier, S., Naess, L. O., Nieto-Romero, M., Novo, P., ÓBrien, K., O'Connell, D. A., O'Donnell, K., Olsson, Per, Pearson, K. R., Pereira, L., Petridis, P., Peukert, D., Phear, N., Pisters, S. R., Polsky, M., Pound, D., Preiser, R., Rahman, M. S., Reed, M. S., Revell, P., Rodriguez, I., Rogers, B. C., Rohr, J., Nordbø Rosenberg, M., Ross, H., Russell, S., Ryan, M., Saha, P., Schleicher, K., Schneider, F., Scoville-Simonds, M., Searle, B., Sebhatu, S. P., Sesana, E., Silverman, H., Singh, C., Sterling, E., Stewart, S. -J, Tàbara, J. D., Taylor, D., Thornton, P., Tribaldos, T. M., Tschakert, P., Uribe-Calvo, N., Waddell, S., Waddock, S., van der Merwe, L., van Mierlo, B., van Zwanenberg, P., Velarde, S. J., Washbourne, C. -L, Waylen, K., Weiser, A., Wight, I., Williams, S., Woods, M., Wolstenholme, R., Wright, N., Wunder, S., Wyllie, A., Young, H. R., Fazey, I., Schäpke, N., Caniglia, G., Hodgson, A., Kendrick, I., Lyon, C., Page, G., Patterson, J., Riedy, C., Strasser, T., Verveen, S., Adams, D., Goldstein, B., Klaes, M., Leicester, G., Linyard, A., McCurdy, A., Ryan, P., Sharpe, B., Silvestri, G., Abdurrahim, A. Y., Abson, D., Adetunji, O. S., Aldunce, P., Alvarez-Pereira, C., Amparo, J. M., Amundsen, H., Anderson, L., Andersson, L., Asquith, M., Augenstein, K., Barrie, J., Bent, D., Bentz, J., Bergsten, A., Berzonsky, C., Bina, O., Blackstock, K., Boehnert, J., Bradbury, H., Brand, C., Böhme (born Sangmeister), J., Bøjer, M. M., Carmen, E., Charli-Joseph, L., Choudhury, S., Chunhachoti-ananta, S., Cockburn, J., Colvin, J., Connon, I. L. C., Cornforth, R., Cox, R. S., Cradock-Henry, N., Cramer, L., Cremaschi, A., Dannevig, H., Day, C. T., de Lima Hutchison, C., de Vrieze, A., Desai, V., Dolley, J., Duckett, D., Durrant, R. A., Egermann, M., Elsner (Adams), E., Fremantle, C., Fullwood-Thomas, J., Galafassi, D., Gobby, J., Golland, A., González-Padrón, S. K., Gram-Hanssen, I., Grandin, J., Grenni, S., Lauren Gunnell, J., Gusmao, F., Hamann, M., Harding, B., Harper, G., Hesselgren, M., Hestad, D., Heykoop, C. A., Holmén, J., Holstead, K., Hoolohan, C., Horcea-Milcu, A. -I, Horlings, L. G., Howden, S. M., Howell, R. A., Huque, S. I., Inturias Canedo, M. L., Iro, C. Y., Ives, C. D., John, B., Joshi, R., Juarez-Bourke, S., Juma, D. W., Karlsen, B. C., Kliem, L., Kläy, A., Kuenkel, P., Kunze, I., Lam, D. P. M., Lang, D. J., Larkin, A., Light, A., Luederitz, C., Luthe, T., Maguire, C., Mahecha-Groot, A. -M, Malcolm, J., Marshall, F., Maru, Y., McLachlan, C., Mmbando, P., Mohapatra, S., Moore, M. -L, Moriggi, A., Morley-Fletcher, M., Moser, S., Mueller, K. M., Mukute, M., Mühlemeier, S., Naess, L. O., Nieto-Romero, M., Novo, P., ÓBrien, K., O'Connell, D. A., O'Donnell, K., Olsson, Per, Pearson, K. R., Pereira, L., Petridis, P., Peukert, D., Phear, N., Pisters, S. R., Polsky, M., Pound, D., Preiser, R., Rahman, M. S., Reed, M. S., Revell, P., Rodriguez, I., Rogers, B. C., Rohr, J., Nordbø Rosenberg, M., Ross, H., Russell, S., Ryan, M., Saha, P., Schleicher, K., Schneider, F., Scoville-Simonds, M., Searle, B., Sebhatu, S. P., Sesana, E., Silverman, H., Singh, C., Sterling, E., Stewart, S. -J, Tàbara, J. D., Taylor, D., Thornton, P., Tribaldos, T. M., Tschakert, P., Uribe-Calvo, N., Waddell, S., Waddock, S., van der Merwe, L., van Mierlo, B., van Zwanenberg, P., Velarde, S. J., Washbourne, C. -L, Waylen, K., Weiser, A., Wight, I., Williams, S., Woods, M., Wolstenholme, R., Wright, N., Wunder, S., Wyllie, A., and Young, H. R.

Abstract

Formalised knowledge systems, including universities and research institutes, are important for contemporary societies. They are, however, also arguably failing humanity when their impact is measured against the level of progress being made in stimulating the societal changes needed to address challenges like climate change. In this research we used a novel futures-oriented and participatory approach that asked what future envisioned knowledge systems might need to look like and how we might get there. Findings suggest that envisioned future systems will need to be much more collaborative, open, diverse, egalitarian, and able to work with values and systemic issues. They will also need to go beyond producing knowledge about our world to generating wisdom about how to act within it. To get to envisioned systems we will need to rapidly scale methodological innovations, connect innovators, and creatively accelerate learning about working with intractable challenges. We will also need to create new funding schemes, a global knowledge commons, and challenge deeply held assumptions. To genuinely be a creative force in supporting longevity of human and non-human life on our planet, the shift in knowledge systems will probably need to be at the scale of the enlightenment and speed of the scientific and technological revolution accompanying the second World War. This will require bold and strategic action from governments, scientists, civic society and sustained transformational intent.

Published
2020
Full Text
View/download PDF

41. The San Joaquin experimental range /

Author

Hutchison, C. B. (Claude Burton), 1885-1980, Kotok, E. I., University of California, Davis Libraries (archive.org), Hutchison, C. B. (Claude Burton), 1885-1980, and Kotok, E. I.

Subjects
California, Forage plants, Range management
Published
1942

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