APPENDIX B 



' EXPERIMENTAL DATA 



This Appendix presents the experimental data obtained under the 

 present research program. 



Tables B-1 and B-2 present the experimental data used in establishing 

 the empirical relationship for the wave friction factor, Figure 22, 

 and equations (124) and (125). Column 1 identifies the experimental run. 

 Columns 2 and 3 give the slope roughness, d, and the period of the 

 wavemaker, T, respectively. From the experimental data, when analyzed 

 as described in Section III. 3. a and Appendix C, the incident wave height, 

 H^, and the reflection coefficient, R^, are obtained as listed in 

 columns 4 and 7, respectively. The observed runup on the rough slope 

 is listed in column 6, and the value of the horizontal extent of the 

 slope relative to the incident wavelength obtained from linear wave 

 theory, JI5/L, is given in column 5. Thus, the first seven columns 

 constitute experimental data. 



With the values of l^,/^^ and R^ from columns 5 and 7 the corresponding 

 value of (}) , the slope friction angle, is obtained from Figure 15. The 

 value of ^, listed in column 8, along with the value of J-s/L then enables 

 Figures 16 and 17 to be used to evaluate R^ and F^ as listed in columns 9 

 and 10, respectively. Finally, fg = tan2(j) is evaluated and the value of 

 f^^ for a given experimental condition is computed from equation (116), 

 using R^ as listed in column 9 from which column 13 is also obtained. 

 The values listed in columns 12 and 13 are those plotted in Figure 22 

 from which the empirical relationships, equations (124) and (125) were 

 obtained. 



Columns 14 and 15 list the predicted values of the reflection 

 coefficient when the procedure is used in reverse, i.e., when the 

 empirical formulas (eqs. 124 and 125) are adopted for the value of f^^. 

 Column 14 gives the predicted reflection coefficient, Rp, using the 

 more elaborate empirical express! on for f^^, equations (125) or (127). 

 Column 15 gives the result, Rpg, obtained when the simple expressions, 

 (eqs. 124 or 126) are used. 



Tables B-3 and B-4 list the experimental results obtained from the 

 separate set of experiments which were not involved in establishing 

 equations (124) and (125). From the experimental conditions the 

 reflection coefficients are predicted from equation (124), Rp, and from 

 equation (126), Rps> following the procedure described in Section III. 4. 

 The comparison between predicted and measured reflection coefficients, 

 R^, listed in Tables B-1 through B-4 is performed in Table 2. 



124 



